Bosch Rexroth A2VK Series High-Pressure Polyurethane Dosing Pump Parts & Rotary Group (A2VK05, A2VK12, A2VK28)
100% interchangeable rotary group & specialized spare parts engineered for Bosch Rexroth A2VK high-pressure chemical dosing pumps, in-stock with OEM-grade accuracy.
- ✓100% Interchangeable
- ✓Durable & High-Wear Resistance
- ✓Large Stock & Fast Shipping
Key Specifications
Item | Details | |
Brand | HYLINK | |
Product Category | High-Pressure Dosing Pump Spare Parts / Rotary Group / Overhaul Kits | |
Compatible Brand | Replacement for Bosch Rexroth (A2VK Series) — 100% Interchangeable | |
Available Frame Sizes | A2VK05 / A2VK12 / A2VK28 (SO2 / SO10 Special Chemical Versions) | |
Applicable Industry | Polyurethane (PU) foaming equipment, chemical metering, and high-pressure reaction injection molding (RIM) | |
Minimum Order Quantity | 1 Piece | |
Delivery Time | 1–3 days for in-stock items / 5–8 days for standard orders | |
Price | Inquire for a direct factory quote | |
Warranty | 6 months against manufacturing and material defects | |
Overview
HYLINK supplies precision-engineered Bosch Rexroth A2VK series (A2VK05, A2VK12, A2VK28) bent-axis axial piston variable dosing pump replacement parts and complete rotary group overhaul kits. Specially designed for high-pressure metering of polyurethane components (polyol and isocyanate), every component is manufactured to exact original tolerances, utilizing chemical-resistant materials and specialized surface treatments to ensure precise flow repeatability, zero leakage, and 100% interchangeability with genuine Bosch Rexroth parts.fleets worldwide.
Product Overview
The Bosch Rexroth A2VK series variable displacement axial piston pumps are the industry standard for high-pressure metering of polyurethane raw materials. Operating under high system pressures (up to 250 bar) and demanding chemical environments (handling corrosive, non-lubricating, or crystallization-prone fluids), internal components—such as the drive shaft with tapered pistons, cylinder block, valve plate, precision handwheel adjustment spindle, and dynamic shaft seals—experience friction, corrosion, and wear over time. This leads to dosage inaccuracy, flow pulsation, fluid contamination, or shaft seal leakage.
HYLINK provides high-precision complete replacement rotary groups and specialized overhaul components across all A2VK frame sizes (05, 12, 28). Manufactured from corrosion-resistant alloy steel, ceramic-coated running bushings, and special Teflon/spring-energized chemical seals, each component undergoes micron-level CMM quality inspection. This enables chemical plant operators and equipment rebuilders to restore factory-grade metering precision without purchasing expensive complete pump units.
Available Components
Below is the standard component list for Bosch Rexroth A2VK series chemical metering pumps. Individual spare parts and complete overhaul repair kits are both available:
Item No. | Part Name | Qty. |
1 | Keyed Shaft | 1 |
2 | Cylinder Block | 1 |
3 | Bearing Plate | 1 |
4 | Center Pin | 1 |
5 | Piston | 7 |
6 | Connecting Rod | 7 |
7 | Retainer Plate | 1 |
8 | Valve Plate | 1 |
Quality Assurance & Manufacturing
Every HYLINK pump and replacement part undergoes strict quality control before shipment:
l Dimensional accuracy — checked with high-precision CMM (Coordinate Measuring Machines) to guarantee an exact fit with original pump housings.
l Material metallurgy — manufactured from premium forged steel and high-wear-resistant alloys to prevent premature fatigue.
l 100% performance test — every complete pump assembly is tested on our dynamic hydraulic test rig for pressure, flow rate and efficiency under full working load.
Packing, Shipping & Warranty
l Packaging — anti-rust protective film + heavy-duty foam cushioning + standard export fumigation-free wooden case (reinforced carton for small spare parts).
l Shipping — express courier (DHL / FedEx) for urgent repair orders; sea or air cargo for bulk orders.
l Warranty — 6 months quality assurance against manufacturing and material defects from the delivery date. In the event of a confirmed quality defect, HYLINK provides hassle-free replacement.
FAQ
Q: Are your SBS pump parts interchangeable with genuine Caterpillar parts?
A: Yes. All parts are produced to original specifications and dimensions and are 100% interchangeable — no modification is required during installation.
Q: What is the minimum order quantity?
A: 1 piece. We supply both individual components and complete rotary group / repair kits.
Q: How fast can you ship?
A: In-stock items are dispatched within 1–3 days; standard production orders take 5–8 days. Express and sea/air freight are both available.
Q: How do I confirm the correct part for my machine?
A: Send us your excavator model, pump model (SBS80 / SBS120 / SBS140) and the part name or photo — our technical team will confirm the correct item before you order.
Q: What warranty do you offer?
A: 6 months against manufacturing and material defects, with replacement support for confirmed quality issues.