Entorquer Cobo — Precision Servo Tightening Tools
The Entorquer Cobo Precision Servo Series delivers high-precision tightening with a Panasonic servo motor — ±3% torque accuracy, ±2% repeatability, closed-loop control, and Open Protocol MES connectivity — with NABL-accredited calibration. The brushless Cobo-B reaches up to 8,000 Nm.

The Entorquer Cobo Precision Servo Series pairs a high-performance Panasonic servo motor with an ultra-high-strength alloy-steel planetary gearbox for precise, repeatable tightening — a bolting solution for wind power, heavy machinery and truck industries.
Precision servo technology
Panasonic servo motor
Lightweight, low-noise, faster and more precise, with no reaction impact to the operator.
Accuracy
Torque output accuracy ±3%, repeatability ±2%.
Closed-loop control
The torque sensor directly tracks and detects the actual torque at the target.
Smart APP
Data recording, analysis, tracking, early warning and error correction.
Ergonomic design
Digit torque setting on a large dynamic LCD colour touchscreen.
Capabilities

- Tightening strategies: angle-limit-by-torque, torque-limit-by-angle, and double limit (torque + angle)
- Optional scan-code parameter entry for efficient, safe work management
- Open Protocol Ethernet communication — real-time data to MES
- Intelligent calibration system + NABL-accredited calibration certificate
- Remote control and I/O module; international power supply (AC 90–264V)
- OK / Not-OK reminder with red/blue alarm lights
Cobo-B — brushless, high torque
Driven by an advanced brushless motor for precise, efficient high-torque bolting.

- Torque up to 8,000 Nm; repeatability ±2% (±1% with optional transducerized system)
- Two-speed full-automatic gearbox — no manual gear switching
- Red-lithium battery packs; Bluetooth & Wi-Fi compatible; 2,000-reading memory
- Real-time display of torque + angle + turn count + nut count
Frequently asked
How accurate is the Cobo series?+
Torque output accuracy is ±3% with ±2% repeatability; the transducerized Cobo-B option increases accuracy to ±1%.
What torque range does it cover?+
The brushless Cobo-B reaches up to 8,000 Nm, suited to wind power, heavy machinery and truck industries.
Does it connect to our MES?+
Yes — Open Protocol Ethernet communication sends real-time tightening data to your MES, and it ships with a NABL-accredited calibration certificate.
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