The 100 kN stand-alone CPT penetrometer set is a lightweight and economical rig with full Cone Penetration Testing (CPT) capabilities. It is suitable for both electrical and mechanical CPT testing.

The stand-alone CPT penetrometer pusher set composes of a 100 kN penetrometer pusher featuring 2 hydraulic cylinders with manually operated valves and a stainless-steel housing for datalogger and computer, a diesel-hydraulic power-pack with a Hatz diesel engine incorporated in a sound insulating enclosure and hydraulic pump and an anchoring system with hydraulic wrench and ground anchors. It can be transported easily by a standard car using the optional sturdy 2-axle trailer.

The 100 kN stand-alone CPT penetrometer set is made of the highest quality components available and built to last. The choice for high quality components of well-known manufacturers having local service centres worldwide reduces machine downtime to a minimum.

CPT Penetrometer Pusher

A hydraulic penetrometer pusher of classic design, comprising 2 vertical hydraulic cylinders, simultaneously operated, with a stroke of 1175 mm. A thrust block connects the two cylinders. It is capable of driving and pulling the CPT sounding tubes and casing tubes into and out of the ground.   

A hydraulic control unit, mounted on a console near the penetrometer pusher, allows the operator to control all functions.  

The unit comes complete with 2 guiding tubes, to be applied between the penetrometer and ground level. One for the support of the CPT sounding tubes, the other for casing tubes.  

The CPT penetrometer pusher is designed for both electrical and mechanical CPT testing. This penetrometer pusher allows for pushing in and pulling out CPT sounding tubes with a diameter of 36 mm, as well as casing tubes with a diameter of 55 mm, and sampling tubes with a diameter up to 90 mm.

Technical Specifications of the CPT Penetrometer Pusher

• Dimensions (L x W x H): 1020 x 400 x 2125 mm

• Weight (without accessories): 480 kg

• Hydraulic cylinders: 2 double-acting cylinders ● Bore ø = 65 mm ● Piston rod ø = 35 mm

• Calibrated CPT testing speed: 20 mm / sec

• Unloaded speeds (continuously variable): 0 – 165 mm / sec downwards, 0 – 125 mm / sec upwards

• Hydraulic capacity (max.): 100 kN (10 tons) during CPT testing, 140 kN (14 tons) during pulling

• Stroke of the hydraulic cylinders: 1175 mm

• Hydraulic valve 1: CPT testing speed - up and down

• Hydraulic valve 2: Unloaded speed - up and down

• Pressure gauge 1: Measures the pushing force (ø = 63 mm, glycerine-filled, range 0 - 250 kN)

• Pressure gauge 2: Measures the pulling force (ø = 63 mm, glycerine-filled, range 0 - 250 kN)

NOTE:  The maximum effective pushing capacity of the stand-alone CPT penetrometer pusher depends on the effectiveness of the anchoring.

Diesel-Hydraulic Power-Pack

The penetrometer pusher is powered by a diesel-hydraulic power-pack. The power-pack comprises an electrically started Hatz 1-cylinder direct-injected diesel engine (9.6 kW @ 3000 RPM) incorporated in silent-pack housing.

The engine, installed on 4 shock-absorbing engine supports, drives a Linde hydraulic pump by means of a propeller shaft and flanges. Large hydraulic oil reservoir with effective 2-stage filtering system.

Technical Specifications of the Power-Pack

• Dimensions (L x W x H): 1700 x 880 x 935 mm

• Weight: 540 kg

• Engine: Hatz 1D81C single cylinder direct-injected diesel engine

• Engine performance: 9.6 kW (13.1 HP) at 3000 RPM acc. to DIN ISO 3046

• Fuel type: Diesel

• Fuel tank: 9 litres

• Noise level: 70 dB at 1500 RPM (CPT testing conditions)

• Starter type: Electric start

• Battery: 12 Vdc – 60 Ah

• Hydraulic pump: Axial piston pump with power regulator

• Hydraulic tank: Capacity approx. 153 l with built-on combined hydraulic filter with air-breather, and magnetic element

• Hydraulic oil: Unil Hydro S46

Anchoring

4 ground anchors, which are screwed into the ground before testing and screwed out after testing, provide in general sufficient reaction force for the 100 kN pushing force of the penetrometer pusher when anchored in suitable grounds. Extra reaction force is obtained by using extension rods, anchors with larger blade diameter or by placing more anchors.

Anchor extension rods are used to increase the length of the ground anchor. They are most useful at sites where the soil at the surface is very weak, but the strength of the soil increases with a little depth. The extension rods can be invaluable at a site where there is a layer of fill covering stronger native soil. The extension rods have a female hexagonal drive on the bottom that pins to a ground anchor. On top it has a male hexagonal drive. The anchor extension rod is connected to the ground anchor using a high-strength bolt and nut (both included).

The CPT penetrometer set comes with a specially designed, two men operated hydraulic wrench for quick and effective placing of the ground anchors. The rotary drive (torque 1700 Nm) is mounted in the centre of the reaction arm of this hydraulic wrench. The wrench can be manoeuvred freely around the pusher and the ground anchors can be placed at that spot that suits the operator best.

The ground anchors are available with 3 different blade diameters, i.e. 220, 300 and 400 mm.  

Effective Anchoring

Only well places ground anchors can provide sufficient reaction force to benefit in full from the 100 kN pushing force of the CPT penetrometer pusher.

Anchor extension rods are used to increase the length of the ground anchor. They are most useful at sites where the soil at the surface is very weak, but the strength of the soil increases with a little depth. The extension rods can be invaluable at sites where there is a layer of fill covering stronger native soil.

Because of the conical shaped soil body on top of the anchor blade, it is recommended to respect a certain distance between the individual anchors in order to obtain optimum anchoring results. The greater the distance between the ground anchors, the more effective the anchoring in fact will be.

CPT Testing

The set comes with a 100 kN CPT penetrometer pusher suitable to accommodate the measuring equipment for all kinds of electrical and mechanical CPT tests with a maximum pushing force of 100 kN, such as:

• Electrical CPTU testing with piezocone

• Electrical CPT testing with standard CFI electric cone

• Dissipation test (when using a piezocone)

• Seismic SCPT(U) testing with a triaxial seismic adapter

• Continuous and discontinuous mechanical CPT tests with automated registration of CPT data

• Continuous and discontinuous mechanical CPT tests with manual registration of CPT data

All CPT tests will be according to national and international standards. 

Optional Accessories

The 100 kN stand-alone CPT penetrometer set can be supplied with the following accessories and CPT equipment:

• Electrical CPT system with standard or piezocone

• Mechanical CPT system (continuous or discontinuous) with automated read-out

• Mechanical CPT system (discontinuous) with manual read-out

• CPT sounding tubes, casing tubes and cutting shoe

• Tilting construction, axle with large wheels and towing hook for easy manoeuvring on site (note: this is not suitable for on-road use)

• 2-axle trailer for transport of the diesel hydraulic power-pack, anchoring beams and tubes

• Pre-drill auger (D = 220 mm) to be used in combination with the hydraulic wrench and the extension rods in order to make a pre-drill hole, if required, prior to CPT testing

• Toolbox with toolset for maintenance and repair

• Manual in Dutch, English, French, German, Spanish or Portuguese

The 200 kN stand-alone CPT penetrometer set is a lightweight and economical rig with full Cone Penetration Testing (CPT) capabilities. It is suitable for both electrical and mechanical CPT testing.

The stand-alone CPT penetrometer pusher set composes of a 200 kN penetrometer pusher featuring 2 hydraulic cylinders with manually operated valves and a stainless-steel housing for datalogger and computer, a diesel-hydraulic power-pack with a Hatz diesel engine incorporated in a sound insulating enclosure and hydraulic pump and an anchoring system with hydraulic wrench and ground anchors. It can be transported easily by a standard car using the optional sturdy 2-axle trailer.

The 200 kN stand-alone CPT penetrometer set is made of the highest quality components available and built to last. The choice for high quality components of well-known manufacturers having local service centres worldwide reduces machine downtime to a minimum.

CPT Penetrometer Pusher

A hydraulic penetrometer pusher of classic design, comprising 2 vertical hydraulic cylinders, simultaneously operated, with a stroke of 1350 mm. A thrust block connects the two cylinders. It is capable of driving and pulling the CPT sounding tubes and casing tubes into and out of the ground. 

 A hydraulic control unit, mounted on a console near the penetrometer pusher, allows the operator to control all functions.

The unit comes complete with 2 guiding tubes, to be applied between the penetrometer and ground level. One for the support of the CPT sounding tubes, the other for casing tubes.

The CPT penetrometer pusher is designed for both electrical and mechanical CPT testing. This penetrometer pusher allows for pushing in and pulling out CPT sounding tubes with a diameter of 36 mm, as well as casing tubes with a diameter of 55 mm, and sampling tubes with a diameter up to 90 mm.

Technical Specifications of the CPT Penetrometer Pusher

Dimensions (L x W x H): 1390 x 465 x 2290 mm

Weight (without accessories): 580 kg

Hydraulic cylinders: 2 double-acting cylinders ● Bore ø = 90 mm ● Piston rod ø = 45 mm 

Calibrated CPT testing speed: 20 mm / sec

Unloaded speeds (continuously variable): 0 – 165 mm / sec downwards, 0 – 125 mm / sec upwards

Hydraulic capacity (max.): 200 kN (20 tons) during CPT testing, 260 kN (26 tons) during pulling

Stroke of the hydraulic cylinders: 1350 mm

Hydraulic valve 1: CPT testing speed - up and down

Hydraulic valve 2: Unloaded speed - up and down

Hydraulic valve 3: Hydraulic catch - engage and disengage (if fitted)

Pressure gauge 1: Measures the pushing force (ø = 63 mm, glycerine-filled, range 0 - 250 kN)

Pressure gauge 2: Measures the pulling force (ø = 63 mm, glycerine-filled, range 0 - 250 kN)

Catching clamp (option): Cylinder 63/40/40, pressure reduced to 35 bar. Provided with a corrugated hardened tip and a pressure accumulator

NOTE:  The maximum effective pushing capacity of the stand-alone CPT penetrometer pusher depends on the effectiveness of the anchoring.

Diesel-Hydraulic Power-Pack

The penetrometer pusher is powered by a diesel-hydraulic power-pack. The power-pack comprises an electrically started Hatz 1-cylinder direct-injected diesel engine (9.6 kW @ 3000 RPM) incorporated in silent-pack housing. 

The engine, installed on 4 shock-absorbing engine supports, drives a Linde hydraulic pump by means of a propeller shaft and flanges. Large hydraulic oil reservoir with effective 2-stage filtering system.

Technical Specifications of the Power-Pack

Dimensions (L x W x H): 1700 x 880 x 935 mm

Weight: 540 kg

Engine: Hatz 1D81C single cylinder direct-injected diesel engine

Engine performance: 9.6 kW (13.1 HP) at 3000 RPM acc. to DIN ISO 3046

Fuel type: Diesel

Fuel tank: 9 litres

Noise level: 70 dB at 1500 RPM (CPT testing conditions)

Starter type: Electric start

Battery: 12 Vdc – 60 Ah

Hydraulic pump: Axial piston pump with power regulator

Hydraulic tank: Capacity approx. 153 l with built-on combined hydraulic filter with air-breather, and magnetic element

Hydraulic oil: Unil Hydro S46

Anchoring

4 ground anchors, which are screwed into the ground before testing and screwed out after testing, provide in general sufficient reaction force for the 200 kN pushing force of the penetrometer pusher when anchored in suitable grounds. Extra reaction force is obtained by using extension rods, anchors with larger blade diameter or by placing more anchors.

Anchor extension rods are used to increase the length of the ground anchor. They are most useful at sites where the soil at the surface is very weak, but the strength of the soil increases with a little depth. The extension rods can be invaluable at a site where there is a layer of fill covering stronger native soil. The extension rods have a female hexagonal drive on the bottom that pins to a ground anchor. On top it has a male hexagonal drive. The anchor extension rod is connected to the ground anchor using a high-strength bolt and nut (both included).

The CPT penetrometer set comes with a specially designed, two men operated hydraulic wrench for quick and effective placing of the ground anchors. The rotary drive (torque 1700 Nm) is mounted in the centre of the reaction arm of this hydraulic wrench. The wrench can be manoeuvred freely around the pusher and the ground anchors can be placed at that spot that suits the operator best.

The ground anchors are available with 3 different blade diameters, i.e. 220, 300 and 400 mm.

Effective Anchoring 

Only well places ground anchors can provide sufficient reaction force to benefit in full from the 200 kN pushing force of the CPT penetrometer pusher.

Anchor extension rods are used to increase the length of the ground anchor. They are most useful at sites where the soil at the surface is very weak, but the strength of the soil increases with a little depth. The extension rods can be invaluable at sites where there is a layer of fill covering stronger native soil.

Because of the conical shaped soil body on top of the anchor blade, it is recommended to respect a certain distance between the individual anchors in order to obtain optimum anchoring results. The greater the distance between the ground anchors, the more effective the anchoring in fact will be.

CPT Testing

The set comes with a 200 kN CPT penetrometer pusher suitable to accommodate the measuring equipment for all kinds of electrical and mechanical CPT tests with a maximum pushing force of 200 kN, such as:

• Electrical CPTU testing with piezocone

• Electrical CPT testing with standard CFI electric cone

• Dissipation test (when using a piezocone)

• Seismic SCPT(U) testing with a triaxial seismic adapter

• Continuous and discontinuous mechanical CPT tests with automated registration of CPT data

• Continuous and discontinuous mechanical CPT tests with manual registration of CPT data

All CPT tests will be according to national and international standards. 

Optional Accessories

The 200 kN stand-alone CPT penetrometer set can be supplied with the following accessories and CPT equipment:

• Electrical CPT system with standard or piezocone

• Mechanical CPT system (continuous or discontinuous) with automated read-out

• Mechanical CPT system (discontinuous) with manual read-out

• CPT sounding tubes, casing tubes and cutting shoe

• Tilting construction, axle with large wheels and towing hook for easy manoeuvring on site (note: this is not suitable for on-road use)

• 2-axle trailer for transport of the diesel hydraulic power-pack, anchoring beams and tubes

• Pre-drill auger (D = 220 mm) to be used in combination with the hydraulic wrench and the extension rods in order to make a pre-drill hole, if required, prior to CPT testing 

• Toolbox with toolset for maintenance and repair

• Manual in Dutch, English, French, German, Spanish or Portuguese 

The 200 kN multi-purpose CPT penetrometer platform is an economical skid-based rig with full CPT testing capabilities. It comes with CW-couplings for quick and easy attaching to a hydraulic excavator. It is suitable for both electrical and mechanical CPT testing.

The platform is ballasted up to a weight of approx. 5,000 kg and fully autonomous due to its diesel-hydraulic power pack. It comes with a safety handrail all around. The diesel-hydraulic power-pack is removable, so it can also be used for other kind of jobs as well.

The platform features a CW-coupling for the attachment of the whole to an excavator and twist-locks for mounting on a truck or jack-up barge. The position of the CW-coupling is such that optimum use is made of the counterweight, that the boom of the excavator can offer.

It comprises a 2-cylinder CPT penetrometer pusher, a diesel-hydraulic power-pack with load-sensing pump, manually operated valves, stainless-steel tube rack, stainless-steel housing for datalogger and computer, etc. All accessories and CPT equipment can be lodged on the platform itself.

CPT Penetrometer Pusher

A hydraulic CPT penetrometer pusher with a push capacity of 200 kN, comprising 2 vertical hydraulic cylinders, simultaneously operated with a stroke of 1350 mm. A thrust block connects the two cylinders and is capable of driving and pulling the CPT sounding tubes and casing tubes into and out of the ground.

A hydraulic control unit, mounted on a console near the CPT penetrometer pusher, allows the operator to control all functions.

The unit comes complete with a guiding tubes, to be applied between the penetrometer and ground level.

Power-Pack

The CPT penetrometer pusher is powered by a diesel-hydraulic power-pack. The power-pack comprises an electrically started Hatz 1-cylinder direct-injected diesel engine (9.5 kW @ 2800 RPM) incorporated in silent-pack housing. The engine, installed on 4 shock-absorbing engine supports, drives a Linde load-sensing pump by means of a propeller shaft and flanges. Large hydraulic oil reservoir with effective 2-stage filtering system.

Technical Specifications

• Dimensions (L x W x H): 2500 x 2500 x 2300 mm

• Weight (without accessories/equipment): Approx. 5,000 kg

• Engine: Hatz 1-cylinder direct-injected diesel engine

• Power: 9.5 kW @ 2800 RPM

• Fuel tank: 9 litres

• Battery: 12 V / 60 Ah

• Pump: Linde, load-sensing

• Hydraulic tank: 200 litre

• Hydraulic filtering: 2 stage

• Max. pushing force: 200 kN

• Max. pulling force: 260 kN

• Unloaded speed up: 105 mm/sec

• Unloaded speed down: 145 mm/sec

• CPT testing speed: 20 mm/sec

Optional Accessories

The 200 kN multi-purpose CPT penetrometer platform can be supplied with the following accessories and CPT equipment:

• Hydraulic catch, integrated in the support beam of the CPT penetrometer pusher, holds the tubes when working e.g. over water or when retrieving tubes out of very soft soils

• Stainless steel rack with foldable trays for the storage of 40 CPT tubes

• Stainless steel housing for storage data acquisition system and laptop

• Workbench with steel frame

• Bench-vice for workbench

• Canopy for the working area made of tarpaulin of extra heavy-duty quality with a passage in the roof for the penetrometer pusher

• 2-dimensional level (type "bull's eye"), adjustable, make Kern

• Toolbox with toolset for maintenance and repair

• Electrical CPT system with standard or piezocone

• Mechanical CPT system (discontinuous) with manual read-out

• Mechanical CPT system (continuous or discontinuous) with automated read-out

• CPT sounding tubes

• Casing tubes and cutting shoe

• Manuals in English, Dutch, German, French, Spanish or Portuguese

A 200 kN trailer-based CPT penetrometer rig is a lightweight and economical rig with full CPT testing capabilities. It is suitable for both electrical and mechanical CPT testing.

It can be towed easily by a 4-wheeldrive car. It comprises a sturdy 2-axle trailer base, a 2-cylinder CPT penetrometer pusher, a diesel-hydraulic power-pack with load-sensing pump, manually operated valves, a work platform at the rear, a levelling system, an anchoring system, tube racks, stainless-steel housing for datalogger and computer, etc. All accessories and CPT equipment can be lodged on the trailer itself.

Trailer

The 200 kN CPT penetrometer pusher, power-pack, levelling jacks, implement supports and alike will be built on a sturdy trailer with 2 axles and 4 large tyres. The axles feature overrun brakes and the tyres are covered with impact-proof mudguards. Comes complete with a standard ball-type trailer coupling on a V-shaped towing frame. Complete with height-adjustable nosewheel.

The chassis is made of a steel frame incorporating the support beam for the CPT penetrometer pusher, the supports for the 4 hydraulic levelling jacks, manually operated outrigger beams for anchoring and a working platform at the rear of the trailer.

For the storage of the CPT equipment and the accessories, the trailer chassis will be provided with:

• Stainless-steel housing for datalogger and laptop computer

• Stainless-steel rack for storing max. 40 CPT sounding tubes

The trailer comes complete with road-legal lighting and reflectors.

CPT Penetrometer Pusher

A hydraulic CPT penetrometer pusher with a push capacity of 200 kN, comprising 2 vertical hydraulic cylinders, simultaneously operated with a stroke of 1150 mm. A thrust block connects the two cylinders and is capable of driving and pulling the CPT sounding tubes and casing tubes into and out of the ground. 

A hydraulic control unit, mounted on a console near the CPT penetrometer pusher, allows the operator to control all functions.

The unit comes complete with a guiding tubes, to be applied between the penetrometer and ground level.

A 2D level is included in order to level the rig rapidly before CPT testing.

Levelling System

In order to carry out a CPT test, the rig ought to be positioned perfectly level. For this purpose, the CPT trailer will be supplied with 4 hydraulic levelling jacks. All jacks come with a foot-plate on a ball-shaped hinge construction in order to distribute the weight and the reaction force of the trailer evenly. 

Anchoring System

In order to provide a solid base for CPT testing, the CPT trailer is anchored to the ground by means of a set of ground anchors, consisting of:

• 4 ground anchors with tapered blade (D = 400 mm, L = 1300 mm)

• 4 extension rods (L = 1000 mm)

• 4 quick-acting tensioners

• 2 loose anchoring beams

The loose anchoring beams are supposed to be placed on the outrigger beams of the trailer in longitudinal direction and have attachments for 2 ground anchors each.

The ground anchors can be placed by means of a hand spanner or the optional hydraulic wrench.

Power-Pack

The CPT penetrometer pusher is powered by a diesel-hydraulic power-pack. The power-pack comprises an electrically started Hatz 1-cylinder direct-injected diesel engine (9.5 kW @ 2800 RPM) incorporated in silent-pack housing. The engine, installed on 4 shock-absorbing engine supports, drives a Linde load-sensing pump by means of a propeller shaft and flanges. Large hydraulic oil reservoir with effective 2-stage filtering system.

Technical Specifications

• Dimensions (L x W x H): 458 x 245 x 260 cm

• Weight (without accessories/equipment): 2500 kg

• Engine: Hatz 1-cylinder direct-injected diesel engine

• Power: 9.5 kW @ 2800 RPM

• Fuel tank: 9 litres

• Battery: 12 V / 60 Ah

• Pump: Linde, load-sensing

• Hydraulic tank: 200 litre

• Hydraulic filtering: 2 stage

• Max. pushing force: 200 kN

• Max. pulling force: 260 kN

• Unloaded speed up: 105 mm/sec

• Unloaded speed down: 145 mm/sec

• CPT testing speed: 20 mm/sec

Optional Accessories

The basic CPT trailer can be supplied with the following accessories and CPT equipment:

• Hydraulic catch, integrated in the support beam of the CPT penetrometer pusher, holds the tubes when working e.g. over water or when retrieving tubes out of very soft soils

• Hydraulic wrench, to be operated by 2 men, for easy placing of the ground anchors

• Electrical CPT system with standard or piezocone

• Mechanical CPT system (discontinuous) with manual read-out

• Mechanical CPT system (continuous or discontinuous) with automated read-out

• Pre-drill auger

• CPT sounding tubes

• Casing tubes and cutting shoe

• Manuals in English, Dutch, German, French, Spanish or Portuguese

Truly robust crawler-based CPT penetrometer pushing rig with rubber tracks, Hatz 3-cylinder diesel engine incorporated in a sound insulating enclosure, load-sensing hydraulic pump, a 200 kN CPT penetrometer pusher, unique anchoring system on reaction arm. Practically all functionalities are controlled by means of a wireless remote control.

The Griffin 200 kN is made of the highest quality components available and built to last. The choice for high quality components of well-known manufacturers having local service centers worldwide reduces machine downtime to a minimum.

Remote Control

The CPT penetrometer rig comes with a radio remote control system offering you an efficient method of operating the rig. This feature enhances the capabilities, improve productivity and allows you to work safely and efficiently at all times. The portable control unit is provided with six (6) levers and is impact and weather resistant with low weight and ergonomic design. The levers can give fully variable operation and are sprung loaded to return to the neutral position, i.e. "dead-man's-handle".

The radio remote control system allows for problem free proportional control of the hydraulic valves of the crawler-based penetrometer rig. It is extremely easy to use with speed, precision and control under maximum safety and is protected against electro-magnetic and radio frequency radiation. The radio transmitter and its antenna are built in. 

Anchoring

4 ground anchors, which are screwed into the ground before testing and screwed out after testing, provide in general sufficient reaction force for the 200 kN pushing force of the penetrometer pusher when anchored in suitable grounds. Extra reaction force is obtained by using extension rods, anchors with larger blade diameter or by placing more anchors.

Anchor extension rods are used to increase the length of the ground anchor. They are most useful at sites where the soil at the surface is very weak, but the strength of the soil increases with a little depth. The extension rods can be invaluable at a site where there is a layer of fill covering stronger native soil. The extension rods have a female hexagonal drive on the bottom that pins to a ground anchor. On top it has a male hexagonal drive. The anchor extension rod is connected to the ground anchor using a high-strength bolt and nut (both included).

The rig is equipped with a very advanced anchoring system. The rotary drive is mounted on a reaction arm provided with hydraulic brakes on the hinge points. The reaction arm can swing freely around the pusher and the function of the hydraulic brakes is to lock the reaction arm and prevent it from moving as soon as it is in the right position.

Using this system the ground anchors can be placed at that spot that suits the operator best. The reaction arm is fixed to the CPT penetrometer pusher; the latter provides the vertical force on the ground anchor. The vertical movement of the CPT penetrometer pusher is synchronised with the rotation speed of the rotary drive and in line with the pitch of the ground anchors.

Anchor extension rods are used to increase the length of the ground anchor. They are most useful at sites where the soil at the surface is very weak, but the strength of the soil increases with a little depth. The extension rods can be invaluable at sites where there is a layer of fill covering stronger native soil.

The ground anchors are available with 3 different blade diameters, i.e. 220, 300 and 400 mm.

CPT Testing

The rig is provided with a 200 kN CPT penetrometer pusher, composing of 2 hydraulic cylinders, a number of connecting bridges and 2 tilting cylinders. The latter tilt the CPT penetrometer pusher up and down. The hydraulic levelling jacks lift the front end of the rig off the ground and are used, in combination with the 2 tilting cylinders and the 2-dimensional air level, to put the CPT penetrometer pusher vertically before CPT testing.

This makes the CPT penetrometer rig suitable for all kinds of electrical and mechanical CPT testing with a maximum pushing force of 200 kN, such as:

• Electrical CPTU testing with piezocone

• Electrical CPT testing with standard CFI electric cone

• Dissipation test (when using a piezocone)

• Seismic SCPT(U) testing with a triaxial seismic adapter

• Continuous and discontinuous mechanical CPT tests with automated registration of CPT data

• Continuous and discontinuous mechanical CPT tests with manual registration of CPT data

All CPT tests will be according to national and international standards. Practically all forces resulting from CPT testing and pulling of the CPT sounding tubes are absorbed by the 2 levelling jacks. The chassis of the rig itself will hardly be loaded.

Technical Specifications

• Dimensions (L x W x H): 2760 x 1400 x 1700 mm (pusher tilted backwards)

• Weight: 2950 kg (without accessories and CPT equipment)

• Total length tracks: Approx. 2000 mm

• Effective length tracks: Approx. 1750 mm

• Track shoe width: 230 mm

• Ground pressure: Approx. 0.37 kg/cm² (without accessories and CPT equipment)

• Engine performance: 38.8 kW (52.8 HP) at 3000 RPM acc. to DIN ISO 3046

• Fuel type: Diesel

• Noise level: 70 dB at 1500 RPM (CPT testing conditions)

• Starter type: Electric start

• Hydraulic pump: Fuel saving “load-sensing” type

• Calibrated CPT testing speed: 20 mm / sec (electronically controlled)

• Unloaded speeds (continuously variable): 0 – 165 mm/sec down, 0 – 125 mm/sec up

• Maximum driving speed: 2.5 km/h

• Hydraulic capacity (max.): 200 kN (20 tons) during CPT testing, 260 kN (26 tons) during pulling  *)

• Stroke of the hydraulic cylinders: 1150 mm

• Hydraulic levelling jacks: Stroke of cylinders = 350 mm, diameter of footplates = 600 mm

• Torque of rotary drive for anchoring: 2500 Nm

*) The maximum effective pushing capacity of the crawler-based CPT penetrometer rig depends on the effectiveness of the anchoring of said rig.

Electric Installation

All functionalities of the crawler-based CPT penetrometer rig are electronically controlled. The electronic installation is lodged in a stainless steel cabinet located safely in the centre of the rig. The elements required for operating the machine are gathered on the control panel integrated in the stainless steel housing located at the right-hand side of the CPT penetrometer pusher on a height adjustable support with locking pin. 

Tube Rack

Gouda-Geo has paid much attention to the storage of the CPT sounding tubes on the crawler-based CPT penetrometer rig. A storage rack manufactured of stainless steel with 4 foldable trays with a total capacity of 40 CPT sounding tubes is mounted on a pivoting arm on the left side of the rig. The lower tray is fixedly mounted, the other three are foldable by means of a hinge-construction (so no handling detachable trays).

When CPT testing procedures are commenced, the tube rack can be pivoted easily towards the CPT penetrometer pusher making tube handling finally an easy job.