The LM75H is a constant energy dynamic penetrometer on wheels. It comprises a pile driver on wheels and a separate hydraulic power unit. With this unit, the device can be used with a hydraulic extractor. Owing to its compact design, this machine can be used in poorly accessible places.
Its simple design makes it a very reliable machine which is easy to maintain. The adjustable dynamic probing system enables testing in DPL, DPM, DPH DPSH-A configuration, in accordance with the NF P 22476-2 standard. This device is also frequently used in SPT configuration with a dropping mass drop height of 75cm.
This penetrometer can be equipped with a data acquisition system and data processing software which allows test parameters to be recorded. Due to its data acquisition system, this assembly can be used for compaction control (NF P94 063).
The success of this device is also due to the design of its dynamic probing system which is equipped with a motor system that is not supported by the drive rod. Apart from this advantage, the support on the drive rod during driving is very limited (in accordance with the requirements of the standards). Moreover, movement of the hammer is free over the whole height of the mast, its travel per blow is not limited.
– Compaction control in accordance with NFP94-063
– Dynamic penetrometer soil investigation in accordance with EN 22476-2
– Sampling by probing in accordance with EN 22476-3
Dynamic probing system
Weight of dropping mass (adjustable):
Travel per blow:
Dynamic probing system weight:
63.5 kg (10+20+20+13.5)
75 or 50cm
Hydraulic via chain
15 – 30 blows/min
Entire height of the mast
Stabilisation / support:
Manual supporting legs
Manual supporting legs
Chassis / carrier
4.8 hp Honda hydraulic petrol engine
– – –
Manual, optionally hydraulic
Manual 6 tonnes, hydraulic 10 tonnes
Transport mode (mm):
Working mode (mm):
L785, W780, H2600
Fixed or lost cone, 20 cm²
Core, window sampler, SPT
Data acquisition (optional)
Recording unit with GPS, can be connected to a PC/tablet via USB or Bluetooth, MSlog software for data processing, creation of reports: Geolocalisation of tests, reference curves for compaction control, insertion of documents into the report, automatic calculation of anomaly types.
Recording unit with 7» color screen, full azerty keyboard, GPS, WIFI and integrated camera. Allows a direct display of the penetrogram with the reference curves, the automatic calculation of anomaly types, the geolocation and the taking of photo for each test, an internet connection for sending the data. Delivered with Mslog software for PC data processing and creation of reports