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Heidenhain 735117-03 ROD 431 Incremental Rotary Encoder | 2048 Lines HTL

The Heidenhain 735117-03 (ROD 431 series) is a high-precision incremental rotary encoder with 2048 lines per turn, HTL output signals, and 10-30V DC supply for reliable position feedback in CNC machines and servo motors.

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New parts: 1-Year | Used: 3-Month

17+ Years

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Product Description

The Heidenhain 735117-03, model ROD 431.026-2048, is an industrial-grade incremental rotary encoder designed for precise angular position and speed measurement on motor shafts and rotating machine components in CNC systems, automation equipment, and servo drives. Featuring a 2048-line-per-turn resolution with photoelectric scanning technology, it generates high-accuracy A, B, and N (reference) square-wave signals via HTL interface (push-pull), ensuring compatibility with most PLCs and motion controllers while supporting scanning frequencies up to 300 kHz for traverse speeds exceeding 6000 rpm.

With a robust blind hollow shaft design (15mm diameter) and clamping ring mounting, it provides backlash-free coupling, axial/radial shaft load capacity up to 150N/350N, and exceptional vibration/shock resistance (100 m/s²/1000 m/s²). The IP40-rated aluminum housing withstands typical industrial contaminants, while the 12-pin M23 connector with axial/radial cable options simplifies integration. Operating across an extended -40°C to +100°C range with low power consumption, it offers maintenance-free operation (>10^9 signal states), diagnostic LEDs, and natural aging compensation, making it ideal for high-duty-cycle applications requiring reliable commutation and positioning accuracy.

Technical Specifications

Parameter Specification
Model 735117-03 (ROD 431.026-2048) 
Type Incremental rotary encoder 
Resolution 2048 lines/turn 
Output Signal HTL (A+, A-, B+, B-, N) 
Supply Voltage 10-30V DC 
Scanning Frequency Max 300 kHz 
Shaft Type Blind hollow shaft, Ø15 mm 
Shaft Loads Axial: 150 N; Radial: 350 N 
Max Speed ≥6000 rpm 
Connection 12-pin M23 plug, axial/radial cable 
Operating Temperature -40°C to +100°C 
Ingress Protection IP40 
Vibration/Shock 100 m/s² / 1000 m/s² 
Dimensions Ø58 x 62 mm 
Weight Approx. 0.3-0.5 kg 

 

What Happens After You Order?

1
Step 1

Order Confirmed

Receive email confirmation once your order or quote is received. We review your request and prepare your parts for the next step.

2
Step 2

Personal Representative

A dedicated rep contacts you to verify specs, confirm shipping details, and answer any questions before dispatch.

3
Step 3

Tested & Shipped

Parts go through rigorous final testing. Once verified, your order is carefully packed and shipped with full tracking info.

FAQ

What is your main line of business?

We specialize in the supply and repair of industrial automation components and CNC spare parts. Our inventory covers 20+ world-class brands including Fanuc, Siemens, Mitsubishi, Lenze, IFM, and SICK, featuring 100,000+ SKUs in stock. Whether you need servo drives, PLC modules, motors, encoders, or sensors, we provide tested, ready-to-ship solutions for both new and refurbished parts.

Where is your company? How do I get there?

Our headquarters is located at Rooms 801–802, Building A1-2, Area A, Guangda We Valley, Zongbu 2nd Road, Songshan Lake Park, Dongguan City, Guangdong Province, China. Our facility is equipped with professional testing labs and a clean, modern warehouse environment.

Do you have test equipment? How long is the delivery time?

Yes — we maintain complete in-house testing equipment, and 100% of parts are fully tested before shipment. Most items are in stock and ready for immediate dispatch. For stocked items, we offer 48-hour express global delivery; standard worldwide shipping typically arrives within 7 days.

What's the warranty on your parts?

New parts: 1 year
Used : 3 months

If a part does not function properly upon receipt, please contact our customer service team immediately and provide a clear video showing the issue. Once verified, you may return it to us within 7 days for an exchange or refund. Returns without prior contact and video evidence may not be accepted.

How about the packing when they are sent out?

All shipments are carefully protected with foam padding to fill every space inside the box, ensuring parts remain secure during transit. We typically use reinforced cardboard boxes; for heavier or high-value items, we provide custom wooden crates for added protection.

What deliveries are available?

We ship globally via UPS, DHL, FedEx, TNT, and EMS, with flexible options to match your urgency and budget.

OUKE Automation is not an authorized distributor unless otherwise specified, representative, or affiliate of the manufacturer of this product. All trademarks and documents are the property of their respective owners and are provided for identification and informational.

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