The CRAB ROBOT is a modular crawler designed for navigation of pipings between diameters of 50mm to 1,000mm. It’s unique state-of-the-art design allows the robot to navigate tight bends (as small as 0.8x D) and vertically in pipes.

The drive unit consists of 6 spring loaded motor drive arms. These powerful motors, combined with planetary transmission, 32 radial ball bearings and 12 rubber coated wheels enables the CRAB ROBOT to achieve maximum traction inside the piping and perform the inspection with ease. The spring loaded drive arms also ensures that the robot is precisely in the center of the pipe, and enables the robot to adapt to uneven surfaces and even navigate past cross sections.

Camera head options such as foward view, pan-tilt or pan-tilt-zoom cameras are also available for the CRAB ROBOT, and produces sharp, crisp images with the CCD imager integrated in the camera module.

The CRAB ROBOT is highly customizable with the possibility to mix and match between various robot chassis and cameras to obtain the ideal configuration for any kind of pipe inspections. The cable length is also extendable and is able to achieve extended travelling distance with additional robot chassis.

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CRX-230/300 CRX-300/400 CRX-400/500 CRX-500/650
Pipe Inner Diameter 230 to 300 mm
9″ to 12″
300 to 400 mm
12″ to 16″
400 to 500 mm
16″ to 20″
500 to 650 mm
20″ to 24″
Min. Bend Radius 1.5x D 1.5x D 1.5x D 1x D
Spring Shock Absorbers 3x variable absorbers 3x variable absorbers 3x variable absorbers 3x variable absorbers
Driven Wheels 12 12 12 12
Gears 6x Planetary Gears 6x Planetary Gears 6x Planetary Gears 6x Planetary Gears
Max Speed 4m/min 4m/min 4m/min 4m/min
Horizontal Traction Force 172N 206N 206N 206N
Recommended Cable Length 70m 90m 90m 90m
Voltage 24 VDC 24 VDC 24 VDC 24 VDC
 Robot Body Length 243mm 295mm 325mm 430mm
Weight (W/O Camera) 2.2kg 3.8kg 4.5kg 4.5kg
Material Aluminium Anodized Aluminium Anodized Aluminium Anodized Aluminium Anodized
Waterproof Splash Proof Splash Proof Splash Proof Splash Proof




Applicable Models CRX-230/300
Camera Type Axial View Pan, Tilt & Zoom
Diameter 80mm 80mm
Image Sensor 1/4″ Sony Super HAD CCD 1/4″ Sony Super HAD CCD
TV Lines 480 Lines 480 Lines
Zoom 10x optical
Focus Electronic Focus Electronic Focus
Field of View (FOV) 80° 150°
Lighting coming soon 40 high intensity LEDs
Operating Temperature -10°C to 50°C 10°C to 50°C


Compatibility For X Series
Cable Drum Length 30 metres
Cable Material Robust plastic coated cable with gold plated slip rings
Optional Add-ons Additional cable length upon requests
Tungstren braided cable upon requests
External Meter Counter
Trolley for Control Unit & Cable Reel


Compatibility For X Series For S, M and X Series
Display 7″ LCD Touch Monitor with Digital Recorder
Storage Media micro SD card; up to 32 GB
Operating System Android
Voltage 230V
Functions 2x Drive Controls
2x Speed Controls
Camera control joystick
Focus & Zoom function
Dimensions 486 x 392 x 192 mm
Integrated with Pelican case
Optional Addons Annotation keyboard
Meter Counter
Trolley for Control Unit & Cable Reel