Precision automation in modern manufacturing

SELF-DEVELOPED AFEA1001 INDUCTIVE IC

Position feedback for the machines that move the future

Luoyun Intelligent designs and manufactures 17-bit absolute inductive encoders — rotary and linear — built on our own AFEA1001 sensing IC, with robotics-grade accuracy and industrial toughness — every unit ships factory-tested.

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17-bitabsolute resolution

0.001°rotary accuracy

0.03 µmlinear accuracy

−40~85°Cwide temperature range

24h response Sample program on request ISO 9001 Official Ti5 Robot distributor

RM series inductive encoder concept render

RM10 Rotary0.001° · 17-bit RM20 Linear0.03 µm · 17-bit

RS485 · Tamagawa protocol BISS-C SSI IEC 61000-4-2 ISO 9001 100% factory tested OEM / ODM ready

Product Line

Two platforms. Every precision position need.

Both families are built on the same self-developed AFEA1001 inductive detection IC, so you get one consistent technology across rotary and linear axes — plus one supply chain and one engineering team to support you.

Rotary · RM10

RM10 Angular / Rotary Encoder

Absolute angle feedback for servo motors, robot joints, spindles and rotary stages.

Resolution: 17 bit
Accuracy: 0.001°
Max speed: 10,000 RPM
Protocols: RS485 · BISS-C · SSI
Protection: IP67
Temp range: −40 ~ +85 °C

View Product Request Datasheet

Linear · RM20

RM20 Linear Encoder

Linear position feedback for linear motors, maglev systems, precision stages and long-travel automation — with unlimited cascading.

Resolution: 17 bit
Accuracy: 0.03 µm
Max speed (linear): 1 m/s
Cascade: Unlimited
Protection: IP67
Temp range: −40 ~ +85 °C

View Product Request Datasheet

Core Technology

Inductive sensing. The next generation of encoders.

Our AFEA1001 IC drives planar PCB coils and reads sub-micron position changes through eddy-current coupling — no optics, no glass scale, no magnets to demagnetize.

Immune to dust, oil, moisture and condensation — nothing to clean
No LED aging, no glass disk breakage, no mechanical wear
Unaffected by external magnetic fields — ideal next to motors
Wide −40 to +85 °C operation, far beyond typical optical encoders

How It Works RM10 Specs

RM encoder coupled to drive electronics — AFEA1001 technology — Encoder + drive electronics

Interactive Demo

Try the RM20 sensing principle

Drag the read head along the scale — watch absolute linear position and 17-bit counts update in real time.

Click & drag the read head

RM20

⇆Click & drag the read head

Position486.600 mm

Counts · 17-bit16,220,000

Resolution0.03 µm

Travel49%

Interactive Demo

Try the RM10 sensing principle

Grab the encoder disc and rotate it — watch absolute angle and 17-bit position update in real time.

Click & drag to rotate

Interactive RM10 encoder disc — drag to rotate

↻Click & drag to rotate

Angle143.428°

Position · 17-bit52,221

Turns0

Full-scale

Why Luoyun

Engineered to outlast, priced to outcompete

Factory-direct engineering

We are the manufacturer, not a trading company — custom shafts, cables and connectors are handled by the engineers who designed the product.

Protocol-ready

RS485 Tamagawa protocol, BISS-C and SSI — compatible with existing servo and control ecosystems.

Fully customizable

Protocols, connectors, form factors, resolutions and mounting — tailored to your BOM, not the other way around.

24-hour response

Direct factory engineering support. Samples, datasheets and answers within one business day.

17-bitabsolute resolution, single & multi-turn

0.001°RM10 rotary accuracy

0.03 µmRM20 linear accuracy

10,000 RPMRM10 maximum speed

Applications

Wherever motion must be precise, we provide the feedback

Humanoid robot joint with integrated encoder

RM10

Humanoid & industrial robots

About 54 encoders per humanoid. Lightweight, EMI-immune joints that survive continuous articulation.

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Precision servo motor with encoder feedback

RM10

Servo motors & drives

Drop-in replacement for Tamagawa and Heidenhain ecosystems with the three protocols servo makers need.

Learn more

Shanghai maglev train — long-travel linear motion

RM20

Linear motors & maglev

0.03 µm accuracy and infinite cascade range for long-travel precision positioning.

Learn more

RM10 · RM20

Machine tools & automation

Spindles, rotary tables and production lines that run 24/7 in oil, dust and vibration.

Learn more

RM10

Smart meters & flow meters

Battery-powered magnetic-free angle sensing at under 10 µA average system power.

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Solar panel array for new energy systems

RM10 · RM20

New energy & outdoor systems

Solar trackers, wind pitch systems and EV drives demanding wide temperature and IP67 protection.

Learn more

Head-to-Head

Specs that matter, compared honestly

We benchmark against the brands we replace — so you can see exactly where the RM series wins, and where it matches.

Parameter	Luoyun RM Series	Heidenhain (DE)	Tamagawa (JP)
Sensing principle	Inductive (eddy current)	Optical	Magnetic / optical
Core chip	Self-developed AFEA1001	In-house	In-house
Resolution	17 bit	13–25 bit	17–20 bit
Operating temperature	−40 ~ +85 °C	0 ~ +50 °C	−20 ~ +70 °C
Contamination resistance	Excellent — immune to dust, oil, water	Moderate	Good
EMI / magnetic immunity	Excellent	Good	Moderate
Protocols	RS485 · BISS-C · SSI	EnDat · SSI	RS485 · SSI
Relative cost	Low	High	Medium-high
Lead time	Short — domestic manufacturing	Long	Long

Engineering-first partnership

Get samples on your test bench within weeks

Tell us your application, protocol and interface — our engineers will confirm compatibility, send samples and support your integration from first prototype to volume production.

Start an Inquiry Download Datasheets

How We Work

From first contact to volume in four steps

Tell us your application

Share your application, protocol, environment and target quantity — we reply within 24 hours.

Specs & samples within days

Datasheets and drawings are available on request; standard samples for qualification, and custom variants developed against your specification.

Qualify on your test bench

Our engineers support your bench testing and certification from start to finish.

Scale to volume

Scheduled delivery, volume pricing structured to your program, and a single supply chain.

Start an Inquiry

Robotics Line

Ti5 Robot components — authorized & ready to ship

As an official distributor of Ti5 Robot brand products, we supply the joint modules, collaborative robots and humanoid platforms that pair perfectly with our RM encoders.

All Robotics Products

Joint Modules

Lightweight joint modules

Harmonic-drive rotary joints from RI30 to RI100 with multi-turn absolute encoders.

Learn more

EBLM

Desktop collaborative robots

Ultra-lightweight EBLM Hydrogen Star desktop cobots for education, research, service and light automation.

Learn more

Ti5 Robot humanoid platform — T140 reference

Humanoids

Humanoid platforms

T140, Booster T1 and TL70A reference platforms for research and deployment.

Learn more

ModelsRI30 – RI100hollow · non-hollow · planetary

ReducerUltra-thin harmoniczero-backlash transmission

Feedback17-bitmulti-turn absolute encoder

IntegrationMotor · Reducer · Encoder · Driver · Brakeplug-and-play joint

FAQ

Common questions from buyers and engineers

Can RM encoders directly replace Tamagawa / Heidenhain units?

For RS485 Tamagawa-protocol systems and SSI setups, yes — the RM10 uses the same electrical interface, so motor and drive makers can qualify it as a second source without redesigning their controller. BISS-C versions are available for high-dynamic applications.

What is the minimum order quantity?

We start with samples for qualification, then move to pilot orders sized to your program. Volume pricing and scheduled delivery can be structured once annual demand is clear.

Can you customize the protocol, connector or housing?

Yes. Because we control the ASIC and the assembly line, we can adapt protocols, interfaces, dimensions, mounting and even the chip functionality itself. Typical customizations take 4–8 weeks to sample.

What quality testing does every unit receive?

Every encoder is 100% factory tested. The series passes ±12 kV ESD (IEC 61000-4-2), 95% RH / 96-hour high-temperature humidity, 10 Hz–2 kHz vibration on all axes, and 980 m/s² mechanical shock. ISO 9001 quality system, 12-month warranty.

Do you support distribution partnerships in my region?

Yes — we are actively building a global distributor network in Europe, Southeast Asia, India and Latin America with exclusive territory agreements, technical training and marketing support.

Still have questions about the RM series?

Send your application details and we will answer within 24 hours — samples, datasheets and engineering support included.

Ask an engineer