Product Core Brief
- Model: SR1008B62
- Brand: Yokogawa
- Series: DYNASERV Direct Drive Servo Actuator
- Core Function: High-torque, direct-drive servo actuator for precision motion control without gearboxes or couplings.
- Product Type: DD Servo Actuator
- Key Specs: Direct-drive architecture | High torque density | Low cogging | Compatible with DYNASERV drives
- Condition: New Original / New Surplus
Key Technical Specifications
- Manufacturer: Yokogawa (Compumotor / Dynaserv product line)
- Part Number:
- Product Family: DYNASERV Direct Drive Servo Actuator
- Drive Type: Direct-drive (DD) servo — no gearbox, no coupling
- Series: SR1008 series within the DYNASERV actuator family
- Suffix Code: B62 — specific winding / configuration variant; exact torque, speed, and encoder options must be verified on the nameplate
- Mechanical Output: Direct-coupled rotary motion to the load
- Typical Applications: Semiconductor handling, precision indexing, wafer processing, optical positioning, robotics, high-accuracy motion stages
Product Introduction
The SR1008B62 is a Yokogawa DYNASERV direct-drive servo actuator. It belongs to the well-known DYNASERV family developed under the Yokogawa / Compumotor Dynaserv product line and is used in applications that require high-precision rotary motion without the backlash, compliance, or maintenance issues associated with gearboxes and couplings.
Its main advantage is direct mechanical coupling to the load, which improves positioning accuracy, dynamic response, and long-term reliability. For motion control engineers and maintenance teams, the SR1008B62 is typically sourced as an OEM replacement or spare for existing DYNASERV-based systems where the original actuator has failed or where a matched spare is required.
QA & Testing SOP
DD servo actuators are precision electromechanical components, so inspection focuses on nameplate data, mechanical condition, and electrical integrity.
- Nameplate verification: Confirm model SR1008B62, suffix code, serial number, and manufacturing markings.
- Visual inspection: Check housing, mounting flange, shaft, cable connector, and nameplate for damage, corrosion, or impact marks.
- Mechanical check: Verify smooth rotation, absence of abnormal drag, and no bearing noise or radial play.
- Winding resistance test: Measure phase-to-phase resistance and compare with expected DYNASERV SR-series values.
- Insulation and encoder check: Verify insulation integrity and encoder/feedback connector condition where applicable.
- Drive compatibility check: Confirm the actuator suffix matches the existing DYNASERV drive configuration before installation.
- ESD-safe packing: Ship with shaft and connector protection, plus nameplate photos for receiving QA.
Installation Pitfalls & Guide
❗ Verify the suffix code before installation. The B62 suffix defines a specific configuration. Substituting a different suffix may change torque, winding, encoder, or mechanical interface characteristics.
❗ Match the actuator to the correct DYNASERV drive. DYNASERV actuators must be paired with compatible drives and properly configured. Incorrect drive pairing can cause fault conditions or degraded performance.
❗ Do not force the shaft or drop the unit. DD actuators contain precision bearings and magnetic structures. Mechanical shock can damage the rotor, bearings, or encoder assembly.
❗ Confirm mechanical mounting and alignment. Direct-drive systems rely on accurate flange mounting and load coupling. Misalignment can cause vibration, bearing wear, or positioning errors.
Replacement steps:
- Pre-install: Confirm model, suffix code, drive compatibility, mounting dimensions, and cable pinout.
- Isolate system: De-energize the servo drive and verify safe work conditions.
- Replace actuator: Remove the faulty unit, install the SR1008B62, and verify mechanical mounting.
- Commission: Reconnect cables, restore power, verify drive parameters, check encoder feedback, and run low-speed jog tests before full operation.
Technical FAQ
Is pricing flexible? Yes. Price depends on condition, suffix code, stock availability, nameplate completeness, and whether the unit is new original or new surplus.
What warranty is included? Surplus servo actuators usually carry a limited functional warranty, often 30–90 days, unless otherwise agreed. Final terms depend on stock source and customer QA requirements.
What does the B62 suffix mean? The B62 suffix indicates a specific configuration within the SR1008 DYNASERV actuator family. Exact torque, winding, encoder, and mechanical options should be confirmed from the nameplate or OEM documentation.
Can it replace other SR1008 variants? Not automatically. Other SR1008 variants may have different suffixes, torque ratings, or encoder options. The replacement must match the original configuration and drive parameters.
Do you provide test records? We can provide nameplate photos, visual inspection notes, winding resistance checks, and packing records. Full drive-level testing can be arranged if required.
