TAMAGAWA TS70 Hollow Shaft Servo-Specific Encoders

The TS70 series from Tamagawa Seiki is an ultra-thin hollow shaft absolute encoder designed for high-dynamic servo systems, suitable for applications with demanding installation space and accuracy, such as collaborative robots, medical equipment, and small precision servo motors.

1. Product Overview

Type: Absolute rotary encoder (single-turn/multi-turn optional)

Shaft type: Hollow shaft (hollow structure, typical aperture Φ6~Φ10mm, supports cable threading)

Resolution: Single-turn 12~19 bits (4096~524,288 steps/turn), multi-turn optional

Output interface: Supports incremental (A/B/Z), serial communication (such as BiSS-C, SSI)

Protection level: IP64 (dustproof, splashproof)

Mechanical design: Ultra-thin and compact (thickness only 15~20mm), light weight, suitable for small servo motors

2. Core features

(1) Ultra-thin and lightweight design

Thickness only 15~20mm, extremely light weight (about 50~100g), suitable for space-constrained servo applications.

Hollow shaft (aperture Φ6mm, Φ8mm, Φ10mm optional) for easy motor cable management.

(2) High dynamic response

Supports high-speed rotation (6000 RPM+), low-latency signal output, suitable for high-precision servo control.

Incremental output supports 1MHz high-frequency response, compatible with mainstream servo drives.

(3) Absolute position detection

Single-turn resolution Up to 19 bits (524,288 steps/turn), multi-turn optional (mechanical or electronic counting).

Position memory after power failure, no battery required (multi-turn models use mechanical energy storage).

(4) Anti-interference and reliability

High vibration resistance (50G shock tolerance), suitable for mobile devices such as industrial robots and AGVs.

Operating temperature: -10°C ~ +70°C.

3. Typical applications

Collaborative robots (Cobot): compact position feedback of joint modules.

Medical equipment: surgical robots, precision motor control.

Small servo motors: micro drive units in automation equipment.

UAV gimbal: high-precision angle detection.

4. Models and Selection Guide

The TS70 series offers a variety of configurations, common models include:

TS70-S12: Single-turn 12-bit (4096 steps), incremental output (A/B/Z).

TS70-S19: Single-turn 19-bit (524,288 steps), BiSS-C interface.

TS70-M16: Multi-turn 16-bit (mechanical gear energy storage), SSI output.