Rexroth A6VE160 control variants HD1 HD1D HD2 HD2D HZ HZ1 overview

These codes refer to the control family and version for the A6VE160​ high‑torque, bent‑axis, variable‑displacement axial‑piston motor in Series 63. The A6VE series is designed for plug‑in integration​ into mechanical gearboxes and supports open and closed circuits​ with a wide control range down to Vg min = 0. Typical ratings for size 160​ include 400 bar nominal​ and 450 bar maximum pressure, with maximum speeds up to about 4900 rpm​ (exact limits depend on control and options) .

What the suffixes mean

• Control families

  • HD​ = Two‑position hydraulic control (valve‑actuated). Used for simple directional control with hydraulic pilot signals; variants differ in internal valve arrangement and actuation logic.

  • HZ​ = Electro‑hydraulic control (electrical pilot stage with hydraulic actuator). Enables finer control of displacement and response via electrical command signals.

• Variant letters and the “D” suffix

  • The trailing letter(s) such as 1 / 2​ identify the specific control variant within the HD or HZ family (e.g., different spool/valve geometries, internal routing, or interface options). Always match the exact variant to the machine’s control scheme and interface requirements.

  • The suffix D​ (e.g., HD1D / HD2D) is commonly used by Rexroth to denote a specific design/interface variant or accessory configuration within that control family. The exact meaning (e.g., connector, mounting interface, or valve arrangement) is defined by the complete type code and must be taken from the official data sheet/BOM. Do not substitute HD1 vs HD1D or HZ vs HZ1 without verifying the variant definition.

Typical selection guidance

• Choose HD​ when you need robust, purely hydraulic two‑position control (e.g., manual or hydraulic pilot actuation) and want to avoid an electrical control loop.

• Choose HZ​ when you require electrical command​ of displacement (finer control, integration with electronic control systems, diagnostics, etc.).

• Between 1 / 2​ variants and the D​ suffix, select the exact code that matches your valve arrangement, pilot pressure requirements, mounting/through‑drive interface, and any integrated options​ (e.g., flushing, boost, counterbalance). Use the official Rexroth ordering code (full type code) and the machine parts list/nameplate as the final authority.

Examples of valid A6VE160 type codes in this family

• A6VE160HD1D/63W‑VZL020B‑S

• A6VE160HD1/63W‑VZL380B‑S

• A6VE160HD2E/63W‑VAL020B

• A6VE160HZ1/63W‑VZL027DA‑S

• A6VE160HZ3/63W‑VZL22XB‑S

  These illustrate how the control family (HD/HZ), variant (1/2/3…), and the extensive design/port/flange suffix (e.g., /63W‑VZL020B‑S) are combined in the official ordering format .

Important notes

• The A6VE160 is offered in Series 63​ with a recessed‑flange plug‑in design for gearbox integration; verify the Series​ and flange/shaft/through‑drive​ in your full type code.

• The A6VE series covers sizes 60…215​ with pressure ratings up to 450 bar nominal / 500 bar maximum​ (size‑dependent); always check the pressure and speed limits for your exact variant and selected options.

• Optional valves such as flushing, boost, and counterbalance (BVD/BVE)​ are available; when fitted, some speed/torque limits and case‑drain requirements must be observed per the data sheet.

• Do not interchange HD1 vs HD1D​ or HZ vs HZ1​ without confirming the variant’s definition in the official Rexroth documentation and your machine specification.