ABAC-A49B-4HP PUMP HEAVY DUTY
- COMPRESSOR HEAD 4HP HEAVY DUTY
- MODEL: A49B
- AIR DISPLACEMENT : 553 LTR/MIN – 24 CFM
- MAX RPM – 1300
- PUMP CODE : 4116090395
Description
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ABAC A49B 4HP Pump Head – Heavy Duty
Genuine ABAC twin-cylinder pump unit built for high-output, heavy-duty compressor applications
The A49B is ABAC’s heavy-duty pump head, engineered for compressors that need to deliver serious air volume under continuous professional or industrial use. Paired with a 4 HP motor, it’s built for workshops, auto body shops, and industrial applications that demand consistent, high-capacity air delivery.
Product Specifications
| Specification | Detail |
|---|---|
| Brand | ABAC |
| Model | A49B (NS31S) |
| Product Type | Compressor Head — 4HP Heavy Duty |
| Pump Code | 4116090395 |
| Compressor Type | Reciprocating (Piston) |
| Stage | Single-stage |
| Drive Type | Belt-driven |
| Cylinders | 2 (twin-cylinder, V-type layout) |
| Air Displacement | 553 Ltr/min (24 CFM) at 4 HP |
| Max RPM | 1,300 RPM |
| Max Pressure | 11 Bar |
| Head Material | Die-cast aluminium with large cooling fins |
| Cylinder Material | Cast iron for durability and heat dissipation |
| Weight | Approx. 18.1 kg |
| Oil System | Oversized oil sump — supplied dry, requires compressor oil before use |
| Includes | Flywheel and air filter |
| Recommended Motor Pairing | 4 HP (up to 5.5 HP variants available) |
| Compatible Tank Range | Suitable for ABAC belt-drive compressors from 100–270 litre tanks |
| Country of Origin | Made in Italy |
| Availability | In stock |
Note: Confirm compatibility using your compressor’s model/serial number before ordering, as belt sizing and mounting brackets can vary between compressor models fitted with the A49B pump.
Features
Heavy-Duty Twin-Cylinder Design
A V-type twin-cylinder layout delivers strong, consistent air output, built specifically for demanding professional and industrial workloads.
High Air Delivery
Rated at 553 litres/min (24 CFM) with a 4 HP motor, giving enough volume to run pneumatic tools, spray guns, and workshop machinery without frequent pressure drop.
Efficient Cooling System
Die-cast aluminium cylinder heads with large cooling fins keep operating temperatures low, reducing wear on valves and cylinders during extended use.
Cast Iron Cylinder Construction
Cast iron cylinders provide excellent heat dissipation and long-term durability under continuous-duty conditions.
Oversized Oil Sump
A larger oil capacity supports better lubrication, helping extend pump life under sustained heavy loads.
Quiet, Slow-Running Belt Drive
The belt-driven design lowers noise levels and mechanical strain compared to direct-drive units, contributing to a longer service life.
Complete, Ready-to-Install Kit
Comes fully assembled with a flywheel and air filter, simplifying installation and reducing service downtime.
Versatile Application
Suited to wood and metal workshops, auto body shops, auto repair shops, and other settings needing reliable, high-capacity compressed air.
Frequently Asked Questions (FAQs)
1. What is the ABAC A49B pump head designed for?
It’s a heavy-duty, high-capacity twin-cylinder pump head built for 4 HP (up to 5.5 HP) compressors used in professional workshops, auto body shops, and light industrial settings needing high air output.
2. How much air does the A49B deliver?
With a 4 HP motor, it delivers 553 litres/min (24 CFM) at up to 1,300 RPM. Higher-HP motor pairings (5.5 HP) can push this to around 595 L/min.
3. Does the A49B pump head come filled with oil?
No, it’s supplied dry. You must add the correct grade of compressor oil before running it for the first time — operating it without oil will cause serious damage.
4. What tank sizes and compressors is the A49B compatible with?
It’s typically used on ABAC belt-drive compressors with 100–270 litre tanks. Always verify compatibility against your compressor’s model/serial number before purchasing, since mounting and belt specifications can differ across models.
5. What comes included with the pump head?
The unit ships complete with a flywheel and air filter, so it’s ready to mount onto your compressor’s motor and tank with minimal extra parts required.
6. Is professional installation recommended?
Yes. While the A49B is designed as a straightforward one-for-one replacement, we recommend having a qualified compressor technician handle installation to ensure correct belt tensioning, safe electrical connection, and proper oil fill.
For pricing, technical datasheets, or bulk/trade inquiries, contact ADEX International LLC.
