Description
The NEMICON HES Series are high-quality Japanese-made incremental rotary encoders designed for precise position and speed feedback in servo systems, CNC machines, robotics, and industrial automation. Models such as HES-0512-2MHC, HES-06-2MHC, HES-06-2MHT, and HES-06-2MD feature a compact 50mm or 38mm housing with hollow shaft (through-hole) or solid shaft options, 512 to 2500 PPR resolution, and differential line driver (or open collector) outputs compatible with major servo drives and PLC high-speed counters.
Key Features
- Resolution Options: 100 to 2500 PPR (HES-0512 = 512 PPR standard)
- Shaft Type: Hollow shaft (through-bore) or solid shaft — HES-06 typically ø6mm solid shaft; HES-05xx = ø8mm hollow or solid per sub-code
- Output Circuit: Line Driver (26C31 / AM26LS31, differential RS-422) or Open Collector (OC) — “2MHC/2MHT” usually = Line Driver, “2MD” = Open Collector NPN/PNP
- Supply Voltage: 5V DC (Line Driver) or 5-12V/24V DC (OC versions — confirm by suffix)
- Protection: IP50–IP65 (depending on cable/outlet option)
- Connector / Cable: Radial or axial cable outlet (M12 or pre-wired)
- Country of Origin: Japan (NEMICON / Nemicon = brand of Japan)
Technical Specifications (Typical for HES-0512-2MHC / HES-06-2MHC)
Parameter | Specification |
|---|---|
Model Example | HES-0512-2MHC (512 PPR, Line Driver, Hollow Shaft) / HES-06-2MHC (Solid Shaft, 512/1000 PPR) |
Encoder Type | Incremental Optical Rotary Encoder |
Pulses Per Revolution (PPR) | 512 (HES-0512); others available 100/200/250/360/500/1000/1024/2000/2500 |
Shaft Diameter | ø6 mm (HES-06 series) / ø8 mm or hollow ø10–ø20 mm (HES-05xx hollow type) |
Output Signal | A, /A, B, /B, Z, /Z (Index) — Line Driver; or A, B, Z — Open Collector |
Supply Voltage | 5V DC ±5% (Line Driver); 5V/12V/24V DC (Open Collector — verify suffix) |
Max. Response Frequency | 100 kHz (typical) → equiv. to 3000–6000 rpm at 1024 PPR |
Starting Torque | ≤ 0.005 N·m (solid shaft), ≤ 0.01 N·m (hollow shaft) |
Allowable Radial/Axial Load | Solid: Radial 30 N, Axial 20 N; Hollow: per size (consult datasheet) |
Operating Temp. | -10 °C to +70 °C |
Weight | Approx. 150–250 g (depending on body style) |
Standards | CE (on selected models), RoHS compliant |
💡 Suffix Guide (typical Nemicon convention):
2MHC / 2MHT → 5V Line Driver (Differential), M = Metric shaft, HC/HT = hollow or thru-bore variant 2MD → Open Collector (NPN), 5V/12V/24V DC (check voltage in code) HES-06 → ø6mm solid shaft body; HES-05xx → typically hollow shaft (through-hole) bodyAlways confirm exact suffix with your application’s voltage & connector needs before ordering.
Warranty & After-Sales
- Factory new units: 12 months warranty
- Refurbished units: 3-6 months warranty (where applicable)
- Technical support for PPR selection, cable pinout, and drive compatibility
- Wiring diagram (A/B/Z phase pinout) provided
- Cross-reference assistance vs. Omron E6B2, Tamagawa TS, Kubler senders
Delivery Time
- Standard delivery: 3-5 working days (stock models)
- Express shipping available upon request
Why Choose Our Store
- Genuine NEMICON (Nemicon Japan) encoders — not aftermarket clones
- Global supply network with competitive pricing
- Expertise in servo feedback devices & CNC retrofits
- Comprehensive technical documentation (datasheets, pinouts)
- Responsive customer service and support
Applications
- Servo motor feedback (Mitsubishi, Yaskawa, Fanuc retrofits)
- CNC axis position sensing (lathe, mill, grinder)
- Conveyor speed / length measurement
- Robotic joint angle feedback
- Web tension / rewinder position tracking


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