Gridbots Stinger-HYDROBLAST

Pipeline Hydroblasting Robot – up to 1000 bar

Stinger-HYDROBLAST is a tracked in-pipe robot that cleans pipelines from the inside using ultra-high-pressure water jets of up to 1000 bar. It removes hard scale, rust, deposits, sludge, old coatings and linings – leaving clean, bare metal ready for inspection or re-coating.

Because it cleans with water alone – no grinding discs, no abrasive grit, no chemicals – the process is spark-free. That makes it the preferred method for pipelines that carried hydrocarbons, gases or other flammable products, and for sites where hot work is restricted.

Steel-wire reinforced tracks give the Stinger strong traction against the jet reaction force and on wet, slippery surfaces, while a rotary jetting head sweeps the full 360° of the bore.

Three HD cameras with LED illuminators and a laser ring profiler give the operator a clear view through the spray and measure the remaining deposits and pipe profile as the robot cleans.

ROBOT CONTROLLER

The Stinger-HYDROBLAST controller is a rugged, splash-proof console with an HDMI touch display showing all three camera feeds, the live laser profile, robot distance and pipe inclination. Joysticks drive the crawler and position the jetting head.

Operators set head rotation speed, travel speed and pass pattern, and control the high-pressure pump dump valve remotely. Automatic modes run constant-speed cleaning passes so every metre of pipe gets the same exposure.

Video, laser profiles and distance logs are recorded for before-and-after reporting.

Models

Model	Pipe ID Range	Max Pressure	Max Flow	Robot Weight
GB-STINGER-HB 150	150 – 300 mm	1000 bar	20 L/min	12 kg
GB-STINGER-HB 300	300 – 600 mm	1000 bar	40 L/min	20 kg
GB-STINGER-HB 600	600 – 1200 mm	1000 bar	60 L/min	35 kg
GB-STINGER-HB 1200	1200 – 2500 mm	1000 bar	80 L/min	55 kg

Larger diameters, ducts and vertical risers on request. Flow depends on the connected high-pressure pump.

Jetting Heads & Nozzles

Interchangeable jetting heads match the cleaning task – from soft sludge flushing to hard scale and lining removal.

CLEANING GUIDE BY DEPOSIT TYPE

Deposit	Typical Pressure	Recommended Head	Result
Sludge, mud, sediment	200 – 400 bar	Flat fan / rotary	Flushed clear
Rust & loose scale	400 – 600 bar	Rotary multi-jet	Bare metal
Hydrocarbon & wax deposits	500 – 800 bar	Rotary multi-jet (hot water option)	Clean surface
Hard scale & calcite	800 – 1000 bar	Pin-jet descaling	Bare metal
Tuberculation	700 – 1000 bar	Pin-jet / rotary	Bare metal
Paint, epoxy & bitumen linings	800 – 1000 bar	Coating stripping head	Substrate exposed
Blockages & plugs	600 – 1000 bar	Forward penetrating	Bore opened

Features

Vision & Laser System

Applications

Performance

Charts show representative values for illustration. Actual results depend on deposit type, pipe condition, pump capacity and nozzle selection.

HYDROBLASTING vs. OTHER CLEANING METHODS

Parameter	Stinger-HYDROBLAST	Mechanical / Grinding	Chemical Cleaning	Pigging
Spark-free	✔	✘	✔	✔
Removes hard scale	✔	✔	Partial	✘
No secondary waste	Water only	Dust & grit	Chemical effluent	✔
Live visual verification	3 HD cameras	Limited	✘	✘
Profile measurement	Laser ring	✘	✘	Intelligent pig only
Damage to base metal	None	Risk of gouging	Risk of corrosion	Low
Works with bends & varying ID	✔	Limited	✔	Needs launcher & uniform bore

CLEANING WORKFLOW

Specifications

ROBOT

Model Series	GB-STINGER-HB (150 / 300 / 600 / 1200)
Pipe Internal Diameter	150 mm – 2500 mm (model dependent)
Tracks	Steel-Wire Reinforced Rubber Tracks
Drive Type	Active Servo Motors
Moving Speed	Maximum of 50 mm/sec
Encoder Motion Resolution	0.1 mm Increments
Inclination Sensor	Pitch & Roll
Pipe Orientation	Horizontal & Inclined; Vertical with Winch Support
Robot Weight	12 – 55 Kg (model dependent)
Build Material	SS-316

HYDROBLASTING SYSTEM

Max Operating Pressure	1000 bar (14,500 psi)
Flow Rate	20 – 80 L/min (model & pump dependent)
Jetting Head	360° Rotary, Variable Speed 0 – 300 rpm
Nozzle Inserts	Sapphire / Ceramic, Interchangeable
Head Positioning	Radial Stand-off & Tilt Adjustment
UHP Hose	1000 bar Rated, up to 100 m on Reel
Pump Compatibility	Standard 500 – 1000 bar Jetting Pumps (Diesel / Electric)
Pump Control	Remote Dump Valve from Controller
Cleaning Media	Water Only (Hot Water Optional) – No Abrasives, No Chemicals

VISION & LASER

Cameras	3 HD [1 – Front Facing, 1 – Jet View, 1 – Rear Facing]
Camera Protection	Sapphire Windows with Air-Purge Wipe
Illumination	High-Power Dimmable LED Illuminators
Laser	Laser Ring Profiler – Bore Profile, Deposit Thickness & Ovality
Overlay Data	Distance, Inclination, Pressure, Date & Time
Recording	Video, Snapshots & Laser Profile Logs

TETHER, POWER & CONTROLLER

Provided Cable Length	Up to 100 Meters
Remote Control	Tether Cable with Steel Rope
Power	Single Phase AC 1 KW
Controller	Splash-Proof Console, HDMI Touch Display, Dual Joysticks
Operating Modes	Manual, Semi-Auto, Automatic Constant-Speed Pass
Data Export	Video, Images, Laser Logs via USB

ENVIRONMENTAL

IP Rating	68 (Robot)
Temperature	5°C to 65°C
Humidity	100% (Robot, submersible)
Hazardous Area	ATEX / IECEx Variant on Request

SAFETY & SENSORS

E-Stop	2x – Stops Robot & Dumps Pump Pressure
Pressure Monitoring	Live Pressure at Robot
Gas Sensors	O₂ / LEL / H₂S (Optional)
Water Ingress Sensor	Yes
Tether Tension Monitoring	Yes
Recovery	Steel Rope for Manual Retrieval

Gallery

Drawings

Media

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