Kalmar reach stackers — the container-handling machines you'll see at ports and intermodal terminals — genuinely split into two distinct generations with different hydraulic architecture. The "Classic" DRF series (2005-2015) runs a Parker P2 series variable-displacement axial piston pump with load-sensing (LS) logic controlled by Kalmar's K-CU control unit, rated up to 350 bar. The newer "Gloria" DRG series introduced updated hydraulics — in some regions a Rexroth-based system — alongside a completely different CAN-bus K-Motion electrical architecture.
Confusing DRF and DRG components genuinely causes problems — using a DRF pump on a DRG machine (or vice versa) results in immediate ECU fault codes and hydraulic chatter, since the pump's flow-compensator settings are calibrated specifically for each generation's control logic.
DRF vs DRG — Confirm Your Generation Before Ordering
Check your machine's exact model designation and year, or WhatsApp us your VIN — DRF and DRG pumps are genuinely not interchangeable, and an off-the-shelf "compatible" unit with generic load-sensing settings can cause jerky boom movement or trigger ECU errors.
Kalmar Pumps — By Generation
| Series | Years | Pump Type | Max Pressure |
|---|---|---|---|
| DRF (Classic) | 2005-2015 | Parker P2 Series, Load-Sensing | Up to 350 bar |
| DRG (Gloria) | 2015-Present | Updated hydraulics (region dependent) | Confirm from nameplate |
DRG hydraulics vary by region and model year — WhatsApp your machine's VIN or a nameplate photo for a precise match before ordering.
Kalmar Pumps — Vehicle Applications
Our Kalmar Quality Guarantee
Generation Confirmed First
We verify DRF vs DRG from your machine's VIN or nameplate before quoting — these run genuinely different hydraulics and control logic.
Load-Sensing Flow Compensator Calibration
Tested for correct flow-compensator response matched to your machine's K-CU control logic — generic settings cause jerky boom movement.
Bench Pressure & Flow Test
Every pump is tested at rated pressure with output documented on the written test report before dispatch.
3-Month Warranty
Minimum 3-month warranty on all pumps. Port and terminal operators ordering multiple units get volume pricing — ask at the quote stage.