Product Introduction
2HP Twin-Cylinder Air Compressor Pump Head - Single-Stage Cast Iron Replacement Pump for Workshop Air Systems
V-Style Dual Piston Design, 52.83 Gal/Min Displacement - Fits 2HP Motor Belt-Drive Air Compressor Assemblies for Automotive, Industrial and General Workshop Use
Air compressor 2HP Air pump
The air compressor pump head is the mechanical core of any belt-drive reciprocating compressor system - the component that determines flow capacity, maximum pressure, and long-term durability under continuous workshop use. When a pump head reaches end-of-life through piston ring wear, valve plate failure, or cylinder bore scoring, replacing the pump assembly restores the compressor to full output without the cost of replacing the entire system including motor, tank, and controls.
This 2HP twin-cylinder pump head is a single-stage V-style unit constructed from cast iron, designed for belt-drive assembly with a 2HP electric motor onto a horizontal or vertical air receiver tank. The V-configuration delivers a combined displacement of 52.83 gallons per minute with a rated working pressure of 0.8 MPa (116 PSI) and a maximum of 1.0 MPa (145 PSI) - sufficient for continuous operation of pneumatic nailers, spray guns, impact wrenches, blow guns, and inflation equipment in automotive repair shops, woodworking workshops, and light industrial facilities. The pump ships with two black round air filter silencer caps on the intake ports and an orange oil fill cap on the crankcase, indicating an oil-lubricated design for sustained service life under continuous-duty cycling.
Technical Profiles & Materials
Cast Iron Cylinder Block and Crankcase for Long-Service Durability Cast from grey cast iron whose natural graphite microstructure provides self-lubricating properties at the cylinder wall, reducing piston ring wear under continuous cycling. Cast iron's dimensional stability under thermal expansion cycles maintains bore geometry across the full operating temperature range, preventing the oval bore distortion that develops in aluminium pump bodies under sustained high-temperature operation. The cast construction also absorbs and dampens reciprocating vibration, reducing noise and extending the service life of valve components and connected fittings.
V-Twin Cylinder Configuration with Copper-Wound Inter-Cylinder Connection The V-style arrangement positions two pistons at an angular offset from a shared crankshaft, producing overlapping compression strokes that reduce pressure fluctuation at the pump outlet compared to single-cylinder designs of equivalent displacement. This smoother delivery reduces the stress cycle amplitude on outlet valves and connected piping, contributing to longer valve plate service life in continuous-duty applications. The copper-wound flexible connection between the two cylinder head outlets accommodates differential thermal expansion between cylinder bodies without the cracking risk of rigid inter-cylinder pipe connections.
Valve Plate Assemblies and Round Air Filter Silencer Caps Each cylinder head incorporates a reed valve plate assembly controlling intake and discharge through the compression cycle - the component most susceptible to wear from particulate contamination or liquid ingestion. The two black round intake filter silencer caps capture airborne dust and moisture before it reaches the valve plates, and their acoustic dampening geometry reduces the intake noise pulse at each piston intake stroke, lowering the compressor's overall sound level in enclosed workshop environments.
Technical Specifications
| ITEM | DETAILS |
| Type | Single-Stage Twin-Cylinder Reciprocating Pump Head |
| Application | 2HP belt-drive compressors; automotive workshops, woodworking shops, light industrial pneumatic tool supply, tyre inflation, spray painting systems |
| Code | 1401138 |
| Material | Cast iron cylinder block and crankcase; aluminium valve plates; copper inter-cylinder connection; rubber intake filter caps |
| Details explanation | V-style twin cylinder; displacement 52.83 Gal/Min; rated 0.8 MPa (116 PSI); max 1.0 MPa (145 PSI); oil-lubricated; two black intake silencer caps included |
| Brand Name | SeaSummer |
| Operating Temp | --10°C to +45°C |
| Delivery Time | 30 Days |
| Packaging | Cardboard packaging |
Products Application
Pump Head Replacement and Compressor Assembly Build in Equipment Workshops
When an existing belt-drive workshop compressor pump fails through piston ring wear, valve plate breakage, or cylinder bore scoring, technicians mount this 2HP pump head onto the existing tank frame, align the flywheel to the motor pulley, set belt tension, fill the crankcase with compressor oil, and commission the rebuilt unit - recovering full output at significantly lower cost than purchasing a complete replacement compressor. The pump is also used by compressor assembly workshops building new belt-drive units from component sets, where the pump head, motor, tank, and control panel are sourced and assembled separately to a customer's capacity and pressure specification. Correct motor-to-pump pulley ratio selection during assembly determines operating RPM and final delivered pressure, and must be verified against the pump's rated speed range before commissioning.
Valve Plate and Internal Component Inspection on the Workshop Workbench
Before installation or after a service interval, technicians place the pump head on the workbench, remove the valve cover assemblies from each cylinder head, and inspect the reed valve plates for cracks, carbon deposits, and seat wear that reduce volumetric efficiency and delivered pressure. Crankcase oil is drained and examined for metallic particles that indicate piston ring or bearing wear progressing beyond the valve plate assembly. This inspection sequence establishes the pump's internal condition before installation, preventing a rebuilt compressor from returning to service with a pre-existing fault that causes rapid repeat failure. The round intake filter silencer caps are removed and inspected at the same time, with blocked or degraded elements replaced to maintain intake airflow at the rated displacement figure.
Continuous-Duty Compressed Air Supply for Automotive and Industrial Workshop Operations
Once assembled and commissioned with correct oil level and belt tension, the 2HP twin-cylinder pump head provides continuous compressed air at up to 116 PSI for the pneumatic tools, spray equipment, and blow-down operations that drive daily automotive workshop productivity - including tyre inflation, impact wrench operation, panel spray preparation, air-powered grinding, and brake dust blow-down between vehicle services. Cast iron cylinder construction sustains the thermal and mechanical load of multi-shift cycling without the bore wear acceleration seen in aluminium pump bodies under continuous high-duty-cycle use, making it a practical long-service choice for independent repair shops and fleet maintenance facilities where compressor uptime directly affects daily throughput.
Quality and Craftsmanship Details
Products Package
About Us
As a premier garden machinery parts supplier, Jiaxing Norsun Trading Co., Ltd. bridges global distributors with over 100 vetted China manufacturers. We streamline your B2B supply chain through strict quality control, flexible production, and factory-direct wholesale pricing. Partner with us for reliable, high-volume sourcing of precision-engineered outdoor power equipment components.
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FAQ
Q: Are you an impartial industrial components dealer or a direct China water pump factors factory?
A:We are a direct, ISO9001-certified engineering water pump components manufacturing facility and precision fluid-control factor manufacture exporter primarily based in China. We function our personal cleanroom injection molding bays, computerized ultrasonic welding arrays, computerized hydraulic stress check stations, and clean-room packaging lines, passing direct-factory wholesale price financial savings straight to your element procurement margins.
Q: Can your manufacturing unit furnish full certification forms for food-contact or consuming water compliance?
A: Yes, absolutely. For food, beverage, or scientific applications, our manufacturing unit makes use of one hundred percent virgin, un-recycled polypropylene resins accompanied by means of fabric traceability certificates. We mechanically furnish B2B purchasers with complete FDA compliance documentation, NSF-grade compound declarations, and RoHS/REACH chemical protection screening sheets to make certain clean clearance thru worldwide customs.
Q: Do you provide customization picks for distinctly corrosive fluids like sturdy acids or ozone?
A: Yes, we are a thoroughly succesful OEM/ODM supplier. For aggressive chemical or ozone environments, we can improve the 12x26.5mm valve configuration in our factory: substituting the general PP housing with top class PVDF (Fluoropolymer) and changing any steel springs with Hastelloy or whole springless gravity-ball architecture, making sure final chemical resistance.
Q: How do we impervious a pattern batch to execute computerized lifecycle and burst-pressure testing?
A: We relatively inspire complete laboratory contrast earlier than logging mass grant agreements. We can ship a pattern lot of 5-10 gadgets of our inventory 12x26.5mm take a look at valves for assessment (setup costs and DHL/FedEx air freight apply). Once the factors pass by your inner lifecycle verification and a formal wholesale quantity manufacturing contract or container run is locked in, the sampling charges are a hundred percent credited returned to your industrial balance.
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