High-pressure applications hydraulic test lines, water jetting, oilfield chemical injection, and elevated-pressure fluid transfer need a hose reel that keeps pace with 5,000 PSI working pressure and retracts automatically between uses without operator effort. The Coxreels HP1125-4-100-A adds the #4 Gast compressed air motor (a Gast Manufacturing aluminum 4-vane air motor that powers automatic drum retraction from your existing shop air supply, independent of the hose's working fluid path) to the HP1125 Series high-pressure frame, delivering push-button retraction of 100 feet of 1/2-inch ID hose at up to 5,000 PSI. The electroless nickel plated steel 90° NPT swivel harder and more corrosion-resistant than the brass swivel on standard 1125 Series models pairs with AFLAS seals (a fluoroelastomer compound with broader chemical and heat resistance than Nitrile) to give the fluid path the material specification that sustained high-pressure service demands. The direct gear drive (no chain the motor engages the drum through gears directly for quiet, smooth retraction without chain stretch or lubrication intervals) keeps the mechanism straightforward, and the all-welded 12-gauge steel A-frame, CNC-spun ribbed discs, and permanently lubricated pillow block bearings complete a reel that handles both the pressure and the cycle count of production high-pressure applications.
Type: Compressed Air Motor Rewind Hose Reel | Series: HP1125 | Motor Type: #4 Gast Aluminum 4-Vane Air Motor | Drive: Direct Gear Drive (No Chain) | Hose I.D. (in.): 1/2 | Hose O.D. (in.): 7/8 | Hose Length (ft.): 100 | Hose Included: No | Max PSI: 5,000 | Swivel: Electroless Nickel Plated Steel 90° NPT | Swivel Seals: AFLAS
Features
- #4 Gast aluminum 4-vane compressed air motor Gast Manufacturing branded motor powering automatic drum retraction from shop air supply, independent of the hose's 5,000 PSI working fluid path
- Direct gear drive no chain or sprocket; engages the drum directly for quiet, smooth retraction without chain slack, stretch, or lubrication requirements
- Electroless nickel plated steel 90° full-flow NPT swivel inlet hardened swivel construction rated for 5,000 PSI service, providing greater pressure capability and corrosion resistance over brass swivels used on standard 1125 Series models
- AFLAS swivel seals fluoroelastomer compound with superior chemical and heat resistance over Nitrile seals, suited to high-pressure petroleum, hydraulic fluid, chemical, and steam service environments
- Exclusive low-profile outlet riser and open drum slot design provides a non-crimping, flat smooth hose wrap around the drum
- Heavy-duty CNC robotically spun and ribbed discs with rolled edges for greater strength, durability, hose protection, and operator safety
- Sturdy one-piece, all CNC robotically welded 12-gauge steel A-frame base not bolted for superior reel structure; mounting pattern in base for wall, ceiling, floor, or vehicle-body installation
- Permanently lubricated, self-aligning pillow block bearings for trouble-free, smooth drum rotation over extended service life
- Adjustable tension brake prevents free-wheeling during hose deployment; long-lasting chip-resistant, rust-inhibiting CPC powder coat finish
Made in USA: 
Applications
- High-pressure washing & water jetting water jetting systems, pressure washing rigs, and surface preparation equipment operating above 3,000 PSI where automatic retraction reduces operator handling time between cleaning passes
- Hydraulic test benches & pressure testing pressure testing of hydraulic components, assemblies, and fittings at up to 5,000 PSI in test lab and field service environments where automatic reel retraction between tests improves workflow
- Oilfield & well service high-pressure chemical injection lines, stimulation fluid delivery, and well control service where 5,000 PSI working pressure and automatic air-motor retraction are both required on the reel station
- Industrial high-pressure fluid transfer hydraulic fluid supply lines, high-pressure lube circuits, and elevated-pressure process fluid delivery in facilities where shop air is available at the reel mounting point for motor retraction
- Plant maintenance & MRO at elevated pressure fixed overhead reel stations in industrial facilities where 5,000 PSI service lines are in use and push-button air motor retraction is preferred over manual crank operation
FAQs
Q: Does the air motor that retracts the reel interfere with the 5,000 PSI working pressure in the hose?
A: No the #4 Gast air motor and the hose working pressure are completely separate fluid paths. The motor has its own small-diameter air supply connection (typically at 90 120 PSI shop air) that powers the drum retraction mechanism. The 5,000 PSI working fluid travels through the hose, through the low-profile outlet riser and swivel, entirely independently of the motor's air circuit. The two systems do not share any fluid path components.
Q: What is the difference between the HP1125-4-100-A (#4 Gast) and the HP1125-4-100-AB (#6 Gast)?
A: Both use Gast Manufacturing air motors powered by shop air, but the #4 Gast is an aluminum 4-vane motor lighter construction suited to standard retraction duty cycles. The #6 Gast is a cast iron 6-vane motor heavier construction with more vanes for smoother torque delivery, better suited to high-cycle installations where the reel retracts many times per shift. For moderate-frequency applications, the #4 Gast is the standard choice; for high-cycle production environments, the #6 Gast provides greater durability.
Q: What is the difference between the HP1125-4-100-A and the standard 1125-4-100-A?
A: Both use the #4 Gast air motor on the same basic chassis, but the HP1125 variant is built for 5,000 PSI working pressure versus 3,000 PSI on the standard 1125. The HP1125 achieves this with an electroless nickel plated steel swivel (versus the brass swivel on the standard 1125) and AFLAS seals (versus Nitrile). For applications at or below 3,000 PSI, the standard 1125-4-100-A is the appropriate choice; for applications requiring up to 5,000 PSI, the HP1125-4-100-A is required.
Q: What air supply does the #4 Gast motor need to retract the reel?
A: The #4 Gast motor uses your existing shop air supply (typically 90 120 PSI) through a separate small-diameter air line to the motor independent of the high-pressure working fluid in the drum hose. Gast does not publish a universal CFM figure for this motor in retraction service; confirm your compressed air system can supply both the retraction motor and other connected tools simultaneously before installation.
Q: Does the reel come with hose included?
A: No the HP1125-4-100-A ships less hose. The drum accepts 1/2" ID / 7/8" OD hose up to 100 feet. Select hose with a working pressure rating at or above your system pressure (up to 5,000 PSI) and rated for your specific media. At 5,000 PSI, use hose assemblies with fittings rated and crimped for high-pressure service hose and fitting selection at this pressure level is a critical safety consideration.
| LESS HOSE | SIZE INDEX |
|||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| SKU | STANDARD CAP | OPTIONAL CAP. Reducer required |
INLET SWIVEL & OUTLET RISER |
PSI | HP SKU | HP PSI | APRX. LBS. |
|||||
| I.D. | O.D. | FT. | I.D. | O.D. | FT. | |||||||
| 1125-4-100 | 1/2" | 7/8" | 100 | 3/8" | 3/4" | 140 | 1/2" F NPT | 3,000 | HP1125-4-100 | 5,000 | 36 | 1 |
| 1125-4-100-A | 1/2" | 7/8" | 100 | 3/8" | 3/4" | 140 | 1/2" F NPT | 3,000 | HP1125-4-100-A | 5,000 | 36 | 1 |
| 1125-4-100-AB | 1/2" | 7/8" | 100 | 3/8" | 3/4" | 140 | 1/2" F NPT | 3,000 | HP1125-4-100-AB | 5,000 | 36 | 1 |
| 1125-4-100-C | 1/2" | 7/8" | 100 | 3/8" | 3/4" | 140 | 1/2" F NPT | 3,000 | HP1125-4-100-C | 5,000 | 36 | 1 |
| 1125-4-100-E | 1/2" | 7/8" | 100 | 3/8" | 3/4" | 140 | 1/2" F NPT | 3,000 | HP1125-4-100-E | 5,000 | 36 | 1 |
| 1125-4-100-EA | 1/2" | 7/8" | 100 | 3/8" | 3/4" | 140 | 1/2" F NPT | 3,000 | HP1125-4-100-EA | 5,000 | 36 | 1 |
| 1125-4-100-EB | 1/2" | 7/8" | 100 | 3/8" | 3/4" | 140 | 1/2" F NPT | 3,000 | HP1125-4-100-EB | 5,000 | 36 | 1 |
| 1125-4-100-ED | 1/2" | 7/8" | 100 | 3/8" | 3/4" | 140 | 1/2" F NPT | 3,000 | HP1125-4-100-ED | 5,000 | 36 | 1 |
| 1125-4-100-EF | 1/2" | 7/8" | 100 | 3/8" | 3/4" | 140 | 1/2" F NPT | 3,000 | HP1125-4-100-EF | 5,000 | 36 | 1 |
| 1125-4-100-H | 1/2" | 7/8" | 100 | 3/8" | 3/4" | 140 | 1/2" F NPT | 3,000 | HP1125-4-100-H | 5,000 | 36 | 1 |
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