Coxreels HP1125-4-325-A Compressed Air #4 Gast Motor Rewind Hose Reel | HP1125 Series | 1/2" Hose Diameter | 325' Hose Length | 5000 Max PSI | Less Hose

High-pressure applications that need the maximum 325-foot reach of the HP1125 Series with automatic air-motor retraction hydraulic test facilities, oilfield service stations, water jetting operations, and elevated-pressure fluid delivery points where shop air is available at the reel mount get push-button retraction across the full 5,000 PSI capable drum from the Coxreels HP1125-4-325-A. 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 through a separate small-diameter air line entirely independent of the 5,000 PSI working fluid path through the drum hose) pairs with direct gear drive (no chain gears engage the drum directly for quiet, smooth retraction without chain stretch or lubrication intervals) on the HP1125 Series high-pressure frame. The electroless nickel plated steel 90° NPT swivel hardened for 5,000 PSI service over the brass swivel on standard 1125 models and AFLAS seals give the fluid path the material specification that sustained high-pressure service demands across the full 325-foot hose length. For fixed installations where shop air is already present at the mount point, the 5,000 PSI working pressure exceeds what the standard 1125 can handle, and 325 feet of reach is required from a single reel station, the HP1125-4-325-A delivers all three without requiring electrical infrastructure at the reel.

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.): 325 | Hose Included: No | Max PSI: 5,000 | Max Temp (°F): 250 | 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 through a dedicated small-diameter air line, independent of the 5,000 PSI working fluid path through the drum
• Direct gear drive no chain or sprocket; engages the drum directly for quiet, smooth retraction without chain slack, stretch, or lubrication requirements across the full 325-foot maximum-capacity drum
• 325-foot maximum capacity the longest single-drum reach in the HP1125 Series for 1/2-inch ID hose, covering large high-pressure test facilities, extended field service areas, and wide facility layouts from a single air-motor-powered reel station
• Electroless nickel plated steel 90° full-flow NPT swivel inlet hardened swivel construction rated for 5,000 PSI service; greater pressure capability and corrosion resistance than the brass swivel on standard 1125 Series models
• AFLAS swivel seals fluoroelastomer compound with superior chemical and heat resistance over Nitrile seals; rated to 250°F and suited to hydraulic fluid, petroleum, chemical, and high-pressure service environments
• Exclusive low-profile outlet riser and open drum slot design provides a non-crimping, flat smooth hose wrap across all 325 feet of drum capacity
• 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, or overhead installation
• Permanently lubricated, self-aligning pillow block bearings for trouble-free, smooth drum rotation under the full weight of a loaded 325-foot drum
• Adjustable tension brake prevents free-wheeling during hose deployment; long-lasting chip-resistant, rust-inhibiting CPC powder coat finish; 2-year manufacturer's limited warranty

Made in USA:

2 Year Warranty

Applications

• High-pressure test facilities maximum reach hydraulic component test benches and pressure testing stations where 5,000 PSI test lines span 325 feet from the reel station and shop air is available for automatic retraction between test cycles
• Oilfield & well service fixed stations permanent reel stations at wellhead service areas and production facilities where high-pressure chemical injection or fluid delivery lines need 325 feet of reach and compressed air is present at the installation point
• Industrial high-pressure fluid delivery large facilities hydraulic fluid supply, elevated-pressure lube circuits, and process fluid delivery across large plant floors where 5,000 PSI service lines span distances that shorter-capacity reels cannot cover from a single station
• High-pressure water jetting fixed stations permanent jetting stations at above 3,000 PSI where 325 feet of hose reach covers large surface areas from a single reel and shop air provides automatic retraction between jetting passes
• Plant maintenance & MRO high-pressure, maximum reach overhead reel stations in large industrial facilities where 5,000 PSI service lines, 325 feet of reach, and shop air availability converge at the same installation point

FAQs

Q: Does the #4 Gast air motor that retracts the reel interact with the 5,000 PSI working pressure in the hose?
A: No the two circuits are completely separate. The #4 Gast motor connects to a dedicated small-diameter shop air line (typically 90 120 PSI) that powers drum retraction only. The 5,000 PSI working fluid travels exclusively through the hose, outlet riser, and swivel none of which are shared with the motor's air circuit. At 325 feet, the two circuits remain fully independent across the entire drum and hose length.

Q: When should I choose the #4 Gast (-A) over the #6 Gast (-AB) on the 325-foot drum?
A: The #4 Gast aluminum motor is appropriate for the 325-foot drum when the retraction cycle frequency is moderate the reel retracts a manageable number of times per shift at this capacity, and the aluminum motor body handles the drum load without sustained thermal stress. The #6 Gast cast iron motor is the better choice for high-cycle production environments where the reel retracts frequently throughout the shift, since the cast iron body manages heat better under the sustained startup load of the maximum-capacity drum. At 325 feet the heaviest drum in the HP1125 Series if there is any uncertainty about the duty cycle, the cast iron #6 Gast provides a meaningful durability margin over the aluminum #4 Gast.

Q: What is the difference between the HP1125-4-325-A and the standard 1125-4-325-A?
A: Both use the #4 Gast aluminum 4-vane air motor on the same basic chassis with direct gear drive. The difference is working pressure and swivel specification. The HP1125-4-325-A is rated to 5,000 PSI with an electroless nickel plated steel swivel and AFLAS seals. The standard 1125-4-325-A is rated to 3,000 PSI with a machined brass swivel and Nitrile seals. For applications at or below 3,000 PSI, the standard 1125-4-325-A is the more economical choice; for applications requiring up to 5,000 PSI, the HP1125-4-325-A is required.

Q: What air supply does the #4 Gast motor need to retract a fully loaded 325-foot drum?
A: The motor uses existing shop air (typically 90 120 PSI) through a separate small-diameter air line. Gast does not publish a universal CFM figure for this motor in reel retraction service. On the 325-foot drum the heaviest load in the HP1125 Series the motor faces greater startup inertia than on shorter drums; confirm your compressed air system can deliver stable pressure under the maximum drum load while simultaneously supplying connected production equipment.

Q: Does the reel come with hose included?
A: No the HP1125-4-325-A ships less hose. The drum accepts 1/2" ID / 7/8" OD hose up to 325 feet. Coxreels recommends SAE 100R16 wire braid hose for HP1125 Series reels a two-wire braid construction rated for hydraulic and high-pressure oil service at up to 5,000 PSI and 250°F. Use assemblies with fittings rated and crimped for high-pressure service, and verify hose OD does not exceed 7/8 inch to ensure correct drum wrap.

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