Introducing the Gage Bilt GB947 Power Unit & GB20SF Hydraulic Installation System
Reliable Hydraulic Power for Heavy-Duty Bobtail® Fastener Installation
When your job demands powerful, dependable hydraulic fastening equipment, having the right system can make all the difference. That's why Reliable Air Tools is excited to introduce the Gage Bilt GB947 Electric Hydraulic Power Unit, GB20SF Hydraulic Installation Tool, and the 940701 and 940705 Hose Kits.
Designed for industrial fastening professionals, this complete hydraulic system delivers the power, precision, and reliability needed for installing large-diameter Bobtail® structural fasteners in manufacturing, heavy equipment, transportation, rail, mining, construction, and structural steel applications.
Whether you're replacing an older hydraulic system or expanding your equipment lineup, the GB947 system is built to keep production moving.
Power Your Hydraulic Installation Tools with the Gage Bilt GB947
The Gage Bilt GB947 Power Unit is a portable electric hydraulic power source designed to operate Gage Bilt hydraulic installation equipment. It is also fully compatible with many Huck® electric and hydraulic installation tools, making it an excellent solution for shops already using Huck-style equipment.
Powered by a 1-1/2 HP electric motor, the GB947 uses a two-stage gear-piston hydraulic pump to deliver smooth, consistent hydraulic pressure for demanding fastening applications.
Hydraulic flow is automatically directed to either the pull or return side of the installation tool through a four-way directional valve, which is controlled directly from the installation tool using a 24-volt remote control system. This provides smooth operation while helping reduce operator fatigue.
For added safety and reliability, the GB947 includes factory-set internal and external relief valves, along with an automatic pressure switch that shuts the unit off when the installation cycle is complete.
Why Choose the Gage Bilt GB947?
Portable Design
Compact enough to move throughout the shop while delivering industrial-grade hydraulic performance.
Powerful Hydraulic Performance
The two-stage hydraulic pump provides fast cycle times and delivers up to 10,000 PSI of adjustable hydraulic pressure.
Compatible with Multiple Hydraulic Tools
Designed for Gage Bilt hydraulic tools and compatible with many Huck® hydraulic installation tools.
Automatic Operation
The 24-volt remote control system allows the installation tool to control the hydraulic power unit, making operation simple and efficient.
Built-In Equipment Protection
Factory-installed relief valves and pressure switches help protect both the operator and the equipment from excessive pressure.
GB947 Key Specifications
- Weight: 52 lbs without oil / 62 lbs with oil
- Motor: 1-1/2 HP Electric (~12,000 RPM)
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Voltage Options:
- GB947: 120V, 50/60 Hz, Single Phase
- GB947-220: 230V, 50/60 Hz, Single Phase
- Pump: Two-stage Gear-Piston Hydraulic Pump
- Output Pressure: Adjustable up to 10,000 PSI
- Reservoir Capacity: Approximately 2.5 Gallons
- Hydraulic Oil: DEXRON® III ATF or Equivalent
- Operating Temperature: -20°F to 122°F
- Noise Level: Approximately 90 dB(A)
- Control System: 24V Remote Solenoid Valve
- Compatibility: Gage Bilt and Huck® Hydraulic Installation Equipment
Simple Pressure Adjustment
The GB947 makes hydraulic pressure adjustments straightforward when changing fastener sizes or applications.
Pull Pressure
- Loosen the lock nut
- Turn the adjustment knob clockwise to increase pressure
- Turn counterclockwise to decrease pressure
- Retighten the lock nut
Return Pressure
- Loosen the lock nut
- Use a hex key to adjust the pressure switch
- Turn clockwise to increase pressure
- Turn counterclockwise to decrease pressure
- Retighten the lock nut
A built-in pressure switch automatically shuts the hydraulic cycle off once the installation tool trigger is released, helping improve efficiency while extending equipment life.
Pair It with the Gage Bilt GB20SF Hydraulic Installation Tool
The GB20SF Hydraulic Installation Tool is specifically engineered for installing large-diameter Bobtail® structural fasteners quickly and efficiently.
Designed for demanding industrial environments, the GB20SF weighs only 11 pounds while delivering an impressive 20,650 pounds of pulling force.
Its compact, lightweight design allows operators to work comfortably in virtually any position without sacrificing power.
Designed for Bobtail® Fastener Installation
The GB20SF installs:
- 1/2" Bobtail®
- 5/8" Bobtail®
- 12 mm Bobtail®
- 14 mm Bobtail®
- 16 mm Bobtail®
Powered by the GB947 hydraulic power unit, the GB20SF delivers smooth installation cycles and consistent clamp force across a wide range of structural fastening applications.
GB20SF Features
Powerful Hydraulic Performance
- Maximum Pull Force: 20,650 lbs @ 7,000 PSI
- Maximum Return Force: 9,500 lbs @ 5,000 PSI
Lightweight Design
At only 11 lbs, the GB20SF reduces operator fatigue during extended use.
Long 2-Inch Stroke
The 2.00" stroke provides excellent installation performance for large structural fasteners.
Electric Actuation
The integrated electric switch allows simple one-handed operation while controlling the GB947 power unit.
Ready to Work
Each tool includes:
- 2-foot hydraulic hoses
- Hydraulic couplings
- Electric switch
- Power cord
GB20SF Specifications
- Weight: 11 lbs (4.99 kg)
- Stroke: 2.00 inches
- Maximum Pull Load: 20,650 lbs
- Maximum Return Load: 9,500 lbs
- Hydraulic Pressure: 7,000 PSI Pull
- Maximum Flow Rate: 2 GPM
- Maximum Inlet Temperature: 125°F
- Power Source: GB947 Hydraulic Power Unit
- Compatible with Huck® Hydraulic Power Units
- Operates in Any Position
Available Nose Assemblies
The GB20SF uses interchangeable nose assemblies (sold separately) to match different Bobtail® fastener sizes.
| Fastener Size | Nose Assembly |
|---|---|
| 1/2" | BOB16-20SF-10 |
| 5/8" | BOB20-20SF-10 |
| 12 mm | BOB12MM-20SF-10 |
| 14 mm | BOB14MM-20SF-10 |
| 16 mm | BOB20-20SF-10 |
Pressure settings can be adjusted based on the fastener diameter and Grade 5 or Grade 8 applications for optimal installation performance.
Complete Your Hydraulic System with Gage Bilt Hose Kits
A reliable hydraulic connection is just as important as the power unit and installation tool. That's why Gage Bilt offers multiple hose kit options to fit your workspace and application.
Gage Bilt 940701 – 12-Foot Hose Kit
The 940701 Hose Kit is the standard 12-foot hose assembly designed for use with the GB940, GB947, and GB947-220 hydraulic power units.
This hose kit is ideal for applications where the power unit is located close to the work area.
Features
- 12-foot hose length
- Hydraulic hoses included
- Quick-disconnect hydraulic couplers
- Control cord included
- Electrical connector included
- Compatible with GB940, GB947, and GB947-220 Power Units
- Works with GB20SF and other compatible Gage Bilt and Huck® installation tools
Gage Bilt 940705 – 26-Foot Hose Kit
Need additional reach around your shop or production line? The 940705 Hose Kit provides 26 feet (7.9 meters) of working distance, giving operators greater flexibility without moving the hydraulic power unit.
Designed for use with the GB940, GB947, and GB947-220 hydraulic power units, this hose kit is perfect for larger work areas and manufacturing environments.
Features
- 26-foot (7.9 m) hose length
- Connects the hydraulic power unit to compatible installation tools
- Includes hydraulic hoses
- Quick-disconnect hydraulic couplers
- Control cord included
- Electrical connector included
- Compatible with GB940, GB947, and GB947-220
- Ideal for GB20SF and other compatible Gage Bilt and Huck® hydraulic installation tools
Whether you choose the compact 12-foot hose kit or the extended 26-foot version, both are designed to provide dependable hydraulic performance while maximizing operator productivity.
Applications
The GB947 hydraulic system is ideal for:
- Heavy Equipment Manufacturing
- Structural Steel Fabrication
- Truck & Trailer Manufacturing
- Rail Equipment
- Agricultural Equipment
- Mining Equipment
- Construction Equipment
- Bridge Construction
- Industrial Manufacturing
- Fleet Maintenance
- Heavy Equipment Repair
- Structural Fastener Installation
Why Buy from Reliable Air Tools?
At Reliable Air Tools, we're committed to supplying professional-grade fastening equipment backed by exceptional customer service and expert product knowledge.
The Gage Bilt GB947 Power Unit, GB20SF Hydraulic Installation Tool, and 940701 / 940705 Hose Kits provide a complete hydraulic fastening solution designed for demanding industrial applications.
Whether you're upgrading your hydraulic system or adding new equipment to your shop, you can count on Gage Bilt's proven performance and Reliable Air Tools' commitment to quality.