![[OMRON] — E32 Nut Type Fiber Unit (Non-LENS in, Coaxial / Diffuse Reflective)](https://img.prosourcemro.com/2026/05/001-315-1024x923.png)
Fiber Optic
Omron
[OMRON] — E32 Nut Type Fiber Unit (Non-LENS in, Coaxial / Diffuse Reflective)
Family ID: OMRON-E32-NUT
OMRON E32 Nut Type Fiber Unit — Non-LENS in conventional 60° aperture reflective fiber units with patented tool-fit nut mounting structure. E32-C21N (M3 Coaxial Reflective) features 9 receiving fibers (vs 4 in conventional E32-C31N) for improved stable detection of low-reflective workpieces, fluttering objects, and angled targets. Small-spot lens attachment compatible. E32-D21N (M4 Diffuse Reflective) — general-purpose M4 size with nut-type mounting reinforcement. Patented tool-fit structure — spanner inserts deep into nut without contacting fiber cable, preventing fiber damage during installation. Single-nut tightening simplifies mounting. Fiber attachment E39-F9W13 included for compatibility with E3NX-FA / E3X-HD / E3X-DA-S amplifiers. IP50, −40 to +70 °C, bend-resistant R2 cable.
2 product codes available in this family
Product Codes & Specifications
| Product Code | Description | Brand | Spec | ||
|---|---|---|---|---|---|
| E32-C21N 2M | E32-C21N — Nut Type coaxial reflective fiber unit, M3, 9 receiving fibers | OMRON | Type: Coaxial Reflective (同軸反射形) | Aperture Angle: approx. 60° (conventional, non-lens) | Mounting Size: M3 | Mounting Thread: M3×0.5 (trivalent chrome-plated zinc alloy) | Receiving Fiber Count: 9 fibers (vs 4 fibers in conventional E32-C31N — improved stability) | Emitter Fiber: 1× 0.5 mm dia. (white-line marked) | Receiver Fiber: 9× 0.25 mm dia. | Sensing Distance — E3X-HD GIGA: 290 mm | Sensing Distance — E3X-HD HS: 90 mm | Sensing Distance — E3X-HD ST: 130 mm | Sensing Distance — E3X-HD SHS: 39 mm | Sensing Distance — E3NX-FA GIGA: 440 mm | Sensing Distance — E3NX-FA HS: 130 mm | Sensing Distance — E3NX-FA ST: 190 mm | Sensing Distance — E3NX-FA SHS: 39 mm | Standard Sensing Object: White paper | Min. Sensing Object (E3X-HD): 5 μm dia. | Min. Sensing Object (E3NX-FA): 2 μm dia. | Mounting Hardware: Hex nut opposite side 5.5 mm / thickness 1.7 mm (nickel-plated brass) + toothed washer (nickel-plated iron) | Recommended Mounting Hole: 3.2 +0.5/0 mm dia. | Tightening Torque: 0.29 N·m | Tensile Strength: 9.8 N | Weight (Packed): approx. 30 g | Fiber Attachment Included: E39-F9W13 (for E3NX-FA / E3X-HD / E3X-DA-S series) — for E3X-SD/E3X-NA 8mm-pitch amplifiers use bundled E39-F9-7 | Application: Small-spot lens attachment compatible — low-reflective workpieces, fluttering / angled object detection | Form Factor: Nut Type (ナット型) — tool-fit structure, spanner does not contact cable | Mounting Method: Single nut tightening with head fixed by spanner (vs conventional 2-nut clamping) | Tool-Fit Feature: Spanner inserted deep into nut without contacting fiber cable — prevents fiber damage | Cable Routing: Wide cable outlet for relaxed routing | Degree of Protection: IP50 (standard for E32 LENS in series) | Ambient Temperature: −40 to +70 °C | Bending Radius of Cable: Bend-resistant R2 | Unbendable Length: 0 mm | Cable Sheath Material: Polyethylene | Fiber Core Material: Plastic | Cable Length: 2 m | Free-cut: Supported | Compatible Amplifiers: E3NX-FA series / E3X-HD series (E3X-DA-S series for C21N/D21N via E39-F9W13 attachment) | Note: E3X-HD0 Communication Unit Connector model was discontinued October 2024 | ||
| E32-D21N 2M | E32-D21N — Nut Type diffuse reflective fiber unit, M4 | OMRON | Type: Diffuse Reflective (拡散反射形) | Aperture Angle: approx. 60° (conventional, non-lens) | Mounting Size: M4 | Mounting Thread: M4×0.7 (trivalent chrome-plated zinc alloy) | Sensing Surface: 2× 1 mm dia. (methacrylate resin) | Sensing Distance — E3X-HD GIGA: 840 mm | Sensing Distance — E3X-HD HS: 240 mm | Sensing Distance — E3X-HD ST: 350 mm | Sensing Distance — E3X-HD SHS: 100 mm | Sensing Distance — E3NX-FA GIGA: 1,260 mm | Sensing Distance — E3NX-FA HS: 360 mm | Sensing Distance — E3NX-FA ST: 520 mm | Sensing Distance — E3NX-FA SHS: 100 mm | Standard Sensing Object: White paper | Min. Sensing Object (E3X-HD): 0.1 mm dia. | Min. Sensing Object (E3NX-FA): 0.03 mm dia. | Mounting Hardware: Hex nut opposite side 7 mm / thickness 2.4 mm (nickel-plated brass) + toothed washer (nickel-plated iron) | Recommended Mounting Hole: 4.2 +0.5/0 mm dia. | Tightening Torque: 0.78 N·m | Tensile Strength: 9.8 N | Weight (Packed): approx. 30 g | Fiber Attachment Included: E39-F9W13 (for E3NX-FA / E3X-HD / E3X-DA-S series) | Application: General-purpose M4 reflective detection with reinforced nut-type mounting | Form Factor: Nut Type (ナット型) — tool-fit structure, spanner does not contact cable | Mounting Method: Single nut tightening with head fixed by spanner (vs conventional 2-nut clamping) | Tool-Fit Feature: Spanner inserted deep into nut without contacting fiber cable — prevents fiber damage | Cable Routing: Wide cable outlet for relaxed routing | Degree of Protection: IP50 (standard for E32 LENS in series) | Ambient Temperature: −40 to +70 °C | Bending Radius of Cable: Bend-resistant R2 | Unbendable Length: 0 mm | Cable Sheath Material: Polyethylene | Fiber Core Material: Plastic | Cable Length: 2 m | Free-cut: Supported | Compatible Amplifiers: E3NX-FA series / E3X-HD series (E3X-DA-S series for C21N/D21N via E39-F9W13 attachment) | Note: E3X-HD0 Communication Unit Connector model was discontinued October 2024 |
