Stanley Hydraulic Underwater Grinder 9 In. Wheel w/ Adaptors - Excludes Hose Whips & Couplers

Name: Stanley Hydraulic Underwater Grinder 9 In. Wheel w/ Adaptors - Excludes Hose Whips & Couplers
Brand: Stanley
SKU: GR29310
Price: 2804.00 USD
Availability: InStock

SKU

GR29310

was $3,187.00 Sale Price $2,804.00

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Specs

More Information
	Application: Grinding and cleaning in underwater applications Features: Adjustable wheel guard 4-10 gpm (15-38 lpm) operating range at the commercial diver end 3200 rpm @ 12 gpm (45 lpm) Hosewhips and quick disconnect couplers are sold separately Two Stanley Tools 12 in. Pigtail Hose P/N: 01652 need to be purchased for the underwater tool to be operational For quick disconnect couplers, please purchase Stanley Tools Quick Disconnect Face Coupler Set 3/8 in. NPT P/N: 03971 Grinding wheels are sold separately Specifications: Capacity: 9 in. wheel on 5/8 in. -11 arbor Rpm: 3200 @ 12 gpm (3200 @ 45 lpm) Weight (with guard): 14 lbs. (6.4 kg) Length: 11 in. (28 cm) Width (with guard): 12 in. (30.5 cm) Pressure: 1000 - 2500 psi (70-176 bar) Flow range: 4-12 gpm (15-45 lpm) at the commercial diver Optimum flow: 12 gpm (45 lpm) Porting: -8 SAE O-ring Motor: Stanley Hyrevz Gear Stanley Hydraulic Underwater Grinder GR29 - P/N: GR29310 Includes: (1) Assist Handle with Plastisol Covering - P/N: 08130 (2) Adaptors User Manual Features Integral STANLEY® Hyrevz™ gear motor produces high torque. Stainless steel spool and fasteners. Two position assist handle for right/left-hand operation. Oversized trigger with guard for diver comfort. Adjustable wheel guard for infinite positions. Plastisol covered handle for comfortable ergonomic grip. Use with grinding wheels, hull scrubbing brushes, wire and nylon brushes, barnacle busters and Desmond wheels. Cast-in lifting eye. Specifications Max Capacity: 9 in. wheel / 23 cm wheel Spindle : 5/8 in. – 11 threaded Circuit Type: Open center Flow Range: 4 - 12 gpm / 15 - 45 lpm Working Pressure: 1000 - 2000 psi / 70 - 140 bar Full Relief Setting: 2250 psi / 155 bar RPM: 3200 @ 12 gpm / 3200 @ 45 lpm Weight (With Guard): 15 lbs. / 6.8 kg Length: 11 in. / 28 cm Width (With Guard): 10 ¼ in. / 26 cm Hydraulic Ports: -8 SAE O-ring Connection Size & Type : 3⁄8 in. male pipe adapter Couplers: Varies with model Hose Whips: No

Information

The Stanley Hydraulics Underwater Grinder GR29 is used by commercial divers for top, face, and side grinding using 9 inch (228.6 mm) diameter wheels. Wire brushes can also be used and depressed-center wheels with an optional adapter. This hydraulic underwater tool can be used by commercial divers to clean off barnacles or coral off of the bottom of the ships.

Hose whips and quick disconnect couplers are sold separately for the Stanley Hydraulics Underwater Grinder P/N: GR29310.

Stanley's Underwater Hydraulic Grinder GR29 can be used by commercial divers for underwater grinding and cleaning with either cup or standard grinding wheels, wire or nylon brushes. Grinding wheels are sold separately.

The integral Stanley Hyrevz gear motor is manufactured to exacting standards to deliver maximum efficiency for the Stanley Hydraulics Underwater Grinder GR29. The plastisol covering the handle transmits very little heat. The plastisol gives a more comfortable grip to the Stanley Hydraulic Underwater GR29. There are two positions available for the assist handle to be conveniently placed by the commercial diver. Either position is at a most comfortable handling position from the valve handle.

The wheel guard is adjustable. By loosening the clamp screw the guard may be rotated to any convenient position by the commercial diver.

*Please reference the ATTACHMENTS tab for downloadable and printable files on this underwater tool.

The STANLEY® Hydraulic GR29 Grinder is a heavy-duty right-angle (vertical) grinder designed for underwater grinding, cutting, and cleaning tasks. Powered by a high-torque gear motor, it accepts a wide range of wheels, brushes, and attachments via a standard 5/8 in.-11 threaded spindle. Built for durability in harsh marine environments, it features a 9 in. adjustable wheel guard, two-position assist handle, and a trigger guard for added safety and control. Finished in high-visibility yellow for easy identification underwater, the GR29 is a reliable choice for professional divers and underwater contractors.

Resources

ATTACHMENTS

Stanley GR29 Spec Sheet 2025.02.28

(Size: 76.9 KB)

Stanley GR29 Underwater Hydraulic Grinder 66486 User Manual 4-2024 Ver. 23

(Size: 645.6 KB)

FAQ's

Will my tool operate if I use a lower flow rate than what would be considered optimum for the tool to operate?

Yes, most tools have an optimal flow range, as long as the gallons per minute delivered to the tool is within this range the tool will work. However, please be award that the tool will run at a slower speed based on the flow rated delivered to the tool. Basically, the lower the gallons per minute the slower the tool will run.

Do any of the Stanley hydraulic tools ship full of hydraulic oil?

No, but the factory normally will leave a little fluid inside the tool to help lubricate the internal components during storage.

What is the difference between the GR29 Grinder and the GR29 CE version Grinder?

The GR29 CE version comes with Quick Disconnect Couplers and a Drive Flange that allows the user to install a grinding wheel that does not come with a built-in arbor.