Multi Turn Hollow Shaft Absolute Encoder, 16 Bit

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SKU: SUCH-RE-KM55

$458.09

● Resolution 16 bit ● Protection rating IP50 ● Communication format BISS_C/SSI ● Shaft diameter Φ14mm~Φ25mm

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Overview
Specs
Application
FAQ
Reviews

Overview

Best cost multi-turn absolute encoder with hollow shaft for sale. This SUCH multi-turn hollow shaft absolute encoder has a 16 bit resolution, operates on a DC 5V power supply, and can be used in temperatures ranging from -20℃ to +95℃. High-quality absolute encoder sensors are available with shaft diameters of Φ14mm/Φ20mm/Φ24mm/Φ25mm, communication formats of BISS_C/SSI, and an IP50 protection rating, making them suitable for industrial automation applications such as servo motors and robots.

Feature

The hollow shaft absolute encoder adopts the principle of non-contact photoelectric reflection, which has high precision and stable performance.
The absolute rotary encoder has a robust structure, with an aluminum alloy housing and a stainless steel shaft.
It features fast start-up time, vibration and shock resistance, and resistance to high and low temperatures, making it suitable for industrial automation.

Dimension (Unit:mm)

Hollow shaft absolute encoder size

R.1 = Radial socket
R.2 = Radial cable

Mounting shaft:

Hollow shaft absolute encoder mounting shaft size

B (shaft diameter)	D	d
Φ14	Φ35	Φ14
Φ20	Φ41	Φ20
Φ22	Φ41	Φ22
Φ24	Φ44	Φ24
Φ25	Φ44	Φ25

Wiring

Socket pin	Line color	BISS_C multi-turn	SSI multi-turn	Function
Pin 1	Red	Up	Up	Power positive
Pin 2	Black	Un	Un	Power negative
Pin 3	White	SL-	DATA-	Data signal
Pin 4	White/ Black	SL+	DATA+	Data signal
Pin 5	Green	MA-	CLOCK-	Clock signal
Pin 6	Green/ Black	MA+	CLOCK+	Clock signal
Pin 7	Yellow	Vbat	Vbat	Backup power
Pin 8	Yellow/ Black	0V	0V	0V

Specs

Basic Parameters
Scanning Principle	Photoelectric
Accuracy	±80″
Response Rotation Speed	6000 min^-1 (normal operation)
RMS Position Signal Noise	±2 @ 18 Bits/r
Communication Format	BISS_C/ SSI
Communication Clock Frequency	≤10MHz (BISS) or ≤5MHz (SSI)
Resolution	16 bit
Startup Time	Typical: 13ms
Absolute Position Sampling Period	≤75ns
Permissible Speed	≤32200 r/min
Electrical Connection	Radial socket/ radial cable
Cable	Twisted pair
Cable Length	1m (Please contact us if other lengths are required)
Internal Multi-Turn Position Update Rate	11.5kHz
Temperature Alarm Limits	-20℃~95℃
Mechanical Parameters
Mechanical Connection	With shaft-encircling locking, a flexible spring plate fixed connection
Shaft Diameter	Φ14mm/ Φ20mm/ Φ22mm/ Φ24mm/ Φ25mm (through)
Shaft Material	Stainless steel
Starting Torque	Below 9.8*10^-3 N.m
Inertial Torque	Below 6.5*10^-6 kg.m²
Allowable Shaft Force	Radial 30N, axial 20N
Maximum Allowable Speed	≤6000rpm
Housing Material	Aluminum alloy
Weight	Approx. 150g
Environmental Parameters
Ambient Temperature	Operating: -20~+95℃ Storage: -25~+95℃
Ambient Humidity	Operating and storage: 35~85%RH (non-condensing)
Vibration	Amplitude 0.75mm, 5~55Hz, 2 hours in each of the three axes
Shock	490m/s², 11ms, 3 times in each of the X, Y, and Z directions
Protection Rating	IP50
Electrical Parameters
Power Supply Voltage	DC 5V
Operating Current	120mA
Backup Voltage	3.6V
Backup Current	35uA
BISS Communication Clock Frequency	10MHz
SSI Communication Clock Frequency	5.0MHz
Operating Ambient Temperature	-20℃~+95℃

Application

CNC Machine Tool

Robot

Motor

FAQ

Q1: What is an absolute multiturn encoder?❯

An absolute multiturn encoder is a position sensor that provides both the exact angular position within one revolution and the total number of revolutions the shaft has turned. It retains this position information even after power is lost.

Q2: What is the difference between absolute encoder multi-turn and single-turn?❯

A single-turn absolute encoder measures position only within one 360° rotation, while a multi-turn absolute encoder also counts the number of full rotations. This allows multi-turn encoders to track position over long travel distances.

Q3: What is the advantage of a multi-turn encoder?❯

The main advantage is that multi-turn encoder remembers the absolute position over multiple revolutions without requiring homing after power loss, making it ideal for applications like linear actuators, cranes, elevators, and robotics where precise long-range positioning is needed.

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Multi Turn Hollow Shaft Absolute Encoder, 16 Bit

Feature

Dimension (Unit:mm)

Wiring

CNC Machine Tool

Robot

Motor

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