The Compact Starting Point of Rexroth's A4VG Family
The A4VG28 sits at the smallest-displacement end of Rexroth's A4VG closed-circuit piston pump range — the same family that includes the widely-deployed A4VG71 (see our dedicated A4VG71 page), scaled down for mini excavators and compact equipment.
Like its larger A4VG siblings, the A4VG28 is built for closed hydrostatic circuits — typically travel drive applications — with the same multi-control-option flexibility (mechanical, hydraulic, electro-hydraulic) that makes the A4VG family broadly adaptable across equipment brands. WhatsApp your exact machine model for confirmation before ordering.
| Machine | Type | Pressure | Displacement |
|---|---|---|---|
| Mini excavators, compact loaders | Various (closed-circuit travel drive) | 350 bar | 28 cc/rev |
Confirm your exact machine and pump nameplate before ordering — WhatsApp a photo for a precise match.
Measured against Rexroth's original A4VG28 tolerance specification.
Tested for accurate response matched to your specific application.
Replaced as standard on every unit.
Verified at 350 bar rated pressure, documented on the written test report.