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Stanley GR29 Underwater Grinder

Stanley GR29 Underwater Grinder

Ref: GR29 30101

Stanley GR29 Hydraulic Underwater Grinder is used by divers and ROV’s alike for grinding, cutting and cleaning with a variety of grinding wheels and cutting discs plus wire and nylon brushes for de-scaling and cleaning. This hydraulic underwater tool can be used by commercial divers to clean off barnacles or marine growth from of the bottom of the ships.

The GR29 has a high torque gear motor with a 5/8-11 threaded spindle plus has an adjustable 9” guard. It takes a 9" or 7" discs and other accessoires plus can be fitted with many different types of wheels for cutting, grinding, buffing, polishing and barnacle removal.

Full range of spares and accessories for the GR29 grinder most available from stock.

Stanley GR29 Grinder Specifications

  • Adjustable wheel guard
  • Assist handle
  • Capacity: 9 in. wheel on 5/8 in. -11 arbor
  • Rpm: 2700 @ 10 gpm (2700 @ 38 gpm)
  • Weight (with guard): 14 lbs. (6.4 kg)
  • Pressure: 1000 - 2500 psi (70-176 bar)
  • Flow range: 15-38 lpm (4-10 gpm)
  • Optimum flow: 38 lpm (10 gpm)
  • Porting: -8 SAE O-ring



The GR29 Grinder is suitable for a wide range of tasks and EC Hopkins offer a wide range of cutting and grinding consumables for this and all the stanley underwater tools.

Consumables include standard abrasive discs through to diamond discs. Please click on the PDF files below to see the range of accessories and consumables for the GR29 Grinder .

GR29 Cutting & Grinding Accessories 03-2018.pdf

GR29 Scaling & Cleaning Accessories 03-2018.pdf

Data Sheet Barnacle Buster 04-2015 v3.pdf

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Contact Details

EC Hopkins Limited Hydraulics
Unit 1,
82 Kettles Wood Drive
Woodgate Business Park
Woodgate Valley
B32 3DB

Tel: +44 (0)121 506 6095
Fax: +44 (0)121 421 8286