SICK WL160-F440 Photoelectric Sensor

Mounting Brackets: 病気 dedicated metal fixing brackets

ケーブル: M8 4-pin straight / angled extension cables (YF2A series)

6. Alternative Model Reference within the Same Series
7. WL160-P440: Single PNP output only, identical 6.5 検出距離m (old variant, phasing out)
8. WL160-E440: Single NPN output only
9. アップグレード交換: GL6-F4211 (new generation with identical dimensions, same sensing distance and compatible wiring)
10. 典型的なアプリケーションシナリオ

SICK WL160-F440 Polarized Retro-reflective 光電センサー (注文番号: 6022774)

1. モデルコードの内訳

2. コア電気 & Optical Specifications

2.1 Sensing Performance

センシング原理: Retro-reflective with polarization filter (suppresses false triggering caused by metallic and mirror-like surface reflections)

光源: 可視赤色LED, 波長 680 nm

検出距離: 0.01 ～ 6.5 メートル (with PL80A reflector); stable standard range: 0.01 ～ 4.5 メートル

応答時間: ≤ 0.5 MS, suitable for high-frequency counting and high-speed production lines

モードの切り替え: Toggle between Light-on / Dark-on via the built-in adjustment knob

2.2 電気定格

供給電圧: 10 ～ 30 ワシントンDCで, ripple tolerance ±10%

Quiescent Current Consumption: ≤ 25 ミリアンペア (無負荷)

出力タイプ: Push-Pull, 最大. load current 100 ミリアンペア, with short-circuit and reverse polarity protection

繋がり: M8 4-pin straight male connector

Output Compatibility: Universal for NPN/PNP PLC inputs

2.3 機械式 & Protection Specifications

寸法 (幅×高さ×奥行き): 11 mm× 38 mm× 23 mm

ハウジング材質: PBT engineering plastic; レンズ: PMMA

侵入保護: IP67 / IP69K (高圧洗浄に強い, applicable for food and cleaning production lines)

オペレーティング & 保管温度: オペレーティング: -25 ℃～ +55 ℃; ストレージ: -40 ℃～ +70 ℃

MTTFD (Mean Time To Dangerous Failure): 1,574 年; frequent replacement is unnecessary under normal working conditions

3. M8 4-Pin Pin Assignment (Standard Pinout)
4. ピン 1: Brown → +24 ワシントンDCで
5. ピン 2: Black → Switch signal output (Push-Pull)
6. ピン 3: Blue → 0 ワシントンDCで / GND
7. ピン 4: White → Function reserved (unused for this model)
8. 主な利点
9. Polarized Optics: Eliminates false triggers from metal workpieces, glossy packaging and mirror-surface conveyor belts;
10. Type-F Push-Pull Output: Directly drives NPN/PNP PLCs without external pull-up resistors;
11. 広い使用温度範囲 + IP69K washdown resistance, 食品に最適, ロジスティクス, packaging and oily machine tool environments;
12. Miniature housing fits confined installation spaces; dual LED indicators (power status + contamination warning);
13. Dust and moisture resistant, equipped with green contamination warning LED to alert lens fouling faults in advance.
14. Mandatory Matching Accessories

Standard Reflectors: PL80A (matched for full 6.5 m range), SP250 short-distance reflective sheet

Object counting and presence detection on packaging conveyor lines

食べ物 & beverage filling lines, cleaning stations (IP69K washdown compatible)

Metal workpiece in-position detection for machine tools (polarization anti-reflection)

物流仕分け, blockage detection for belt conveyed materials

Position limit detection for automated small doors and lifting equipment

Full Brand Recommendation for Retro-reflective Photoelectric Sensors

Classified into four tiers: High-End European & American Brands, High-Precision Japanese Brands, Cost-Effective Korean Brands, Domestic Alternative Brands. Each tier includes core strengths, representative series and applicable scenarios, with benchmark comparison against the SICK WL160 you are using.

Tier 1: High-End European & Industrial-Grade American Brands (High Stability, Preferred for Harsh Working Conditions)

1. 病気 (ドイツ, your currently used brand)

Main Retro-reflective Series: WL160, WL12, WL24, WL27

主な利点: Mature polarization filter technology, IP69K washdown rating, 広い温度範囲 (-25 ～ +55 ℃), universal Type-F push-pull output, built-in lens contamination warning; full coverage of long sensing distances from 6.5 m to 30 メートル, complete range of IO-Link intelligent models

該当するシナリオ: Food cleaning lines, metal workpiece detection for machine tools, 物流仕分け, anti-reflection detection for automotive production lines

2. スローガン (ドイツ, Specialist for Transparent Object Detection)

Main Polarized Retro-reflective Series: PRK25, PRK3B, PRK46B

主な利点: Coaxial polarized retro-reflective optics, specially designed for transparent bottles, films and glass; self-collimated optical path with large installation tolerance and strong resistance to intense ambient light interference

該当するシナリオ: Transparent material packaging, pharmaceutical filling, photovoltaic glass inspection

3. バナー (アメリカ合衆国, Specialized in Photoelectric Sensors)

Main Retro-reflective Models: QS18, Q20, M12 cylindrical polarized variants

主な利点: Circuitry resistant to strong ambient light and inverter interference, dual product lines including economical models and high-precision laser retro-reflective sensors, compact size for easy installation

該当するシナリオ: 3C electronics, small conveyor lines, light-duty outdoor equipment

4. ペッパール+フックス (ドイツ)

Main Retro-reflective Series: RL28, RL31, RLK cylindrical / square polarized photoelectric sensors

主な利点: Complete portfolio of explosion-proof, heavy-duty and semiconductor cleanroom-specific models, stable long-distance detection, top-tier EMC anti-interference performance

該当するシナリオ: Explosion-proof chemical stations, lithium battery production, heavy industry conveyor lines

5. IFM Electronic (ドイツ)

Main Miniature Polarized Retro-reflective Series: O6, O7

主な利点: Standardized IO-Link interface, integrated metal housing, oil and vibration resistant, fully compatible industrial bus ecosystem

該当するシナリオ: Automated machine tools, intelligent operation & maintenance for conveying lines

Tier 2: High-Precision Japanese Brands (High Consistency & 精度)

1. キーエンス (Premium Japanese Brand)

Main Retro-reflective Series: LR-X laser retro-reflective series, PR-M polarized photoelectric series

主な利点: Digital teach-in function, unaffected by workpiece color or surface reflection, stable detection of tiny objects, ultra-fast response speed; laser versions feature ultra-small light spots for precise positioning

該当するシナリオ: High-precision assembly, electronic SMT mounting, ultra-thin material inspection, high-end production lines with sufficient budget

2. オムロン (Universal All-Rounder)

Main Retro-reflective Series: E3Z-R61/E3Z-R81 (classic 15 m再帰反射), E3FS, E3ZM polarized series

主な利点: Largest global installed base, interchangeable accessories and brackets, dual PNP/NPN outputs, simple commissioning, balanced cost performance, numerous domestic replica alternatives

該当するシナリオ: General packaging, conveyor counting, small automated equipment, standard factory machine configuration

3. パナソニック

Main Polarized Retro-reflective Series: CX-481, CX-442

主な利点: Ultra-thin form factor, 低消費電力, wide temperature tolerance, widely used for small equipment and manipulator limit positioning

該当するシナリオ: Injection molding manipulators, small conveying equipment, light-duty warehouse detection

Tier 3: Cost-Effective Korean Brands (Affordable Imported Alternative to Omron)

Autonics

Main Polarized Retro-reflective Series: BJ series (BJ3M-PDT, BJ10M)

主な利点: 30% lower price than Japanese brands, parameters matching Omron E3Z, polarization anti-reflection design, complete M8/M12 connector options, abundant domestic stock availability

該当するシナリオ: 中くらい & small packaging, ロジスティクス, 木工機械, mass production cost reduction as import replacement

Tier 4: Domestic Alternative Brands (Low-Cost, Fully Compatible with Import Wiring Pinouts)

1. Lanbao (Top-Tier Domestic Brand, Benchmarks SICK / オムロン)

Main Polarized Retro-reflective Series: LRD, PRD

利点: IP67/IP69K washdown resistant, プッシュプル出力, identical dimensions to WL160 / E3Z for direct mechanical replacement, stability close to imported products, comprehensive after-sales service

2. Sodron (Manufactured with Omron Homologous Processes)

Main Series: SR retro-reflective photoelectric sensors, fully compatible with E3Z in pin assignment and dimensions

利点: Former OEM supplier for Japanese brands, 強力な耐干渉性能, preferred replacement solution for mass equipment production

3. F&C JIAZHUN, KJT

位置決め: General economical grade, full coverage of 3 ～ 10 m retro-reflective range, complete polarized variants, ultra-low unit price

該当するシナリオ: General conveying, woodworking, non-standard packaging equipment, mass procurement with tight budget

4. Huaming Sensor, Aoyili (Domestic Specialists for Transparent Object Detection)

特徴: Coaxial polarized retro-reflective optics dedicated to transparent films and glass bottles, benchmarking Leuze PRK series at only 1/3 of the import price

5. Quick Matching Guide for Model Selection
6. Heavy washdown environments, metallic reflective surfaces, 長距離検出: 病気, スローガン
7. Transparent bottle / film detection: スローガン, Huaming Sensor, Keyence laser retro-reflective sensors
8. High-precision tiny workpieces, high-end production lines: キーエンス
9. Standard general machinery, standardized component selection: オムロン, Autonics
10. Cost reduction domestic replacement, direct swap for WL160 / E3Z: Lanbao, Sodron
11. 防爆, 重工業, semiconductor cleanroom environments: ペッパール+フックス, IFM Electronic

Complete Application Scenarios for Retro-reflective Photoelectric Sensors

動作原理: The transmitter emits red light or laser beam, which bounces back to the receiver via a matched reflector. A signal is triggered once an object blocks the light path. Standard polarized variants eliminate false detection from metallic and glossy surfaces. With long sensing distance, simple installation and minimal wiring, retro-reflective sensors are the most widely used photoelectric type in automation.

1. 包装 & 印刷業 (Most Common Application Field)
2. Conveyor Line Material Presence Detection

数える, material sorting and equipment halt alarms triggered as cartons, packaging bags, plastic boxes and gift boxes pass through the sensing zone.

2. Transparent Material Detection (Special Polarized Models)

Ordinary through-beam sensors tend to generate false detections for mineral water bottles, glass bottles, PET films and transparent blister packs; polarized retro-reflective sensors deliver stable identification.

3. シーリング & Carton-Closing In-Place Detection

Detection of sealing roller position, heat-seal film presence and cap crimping status for carton sealers.

4. Sheet Separation & Bottle Counting

Batch counting for beverage filling lines, pharmaceutical blister packs and packaging bags; alarms for missing bottles or materials.

5. Paper Shortage & Paper Jam Protection for Printing Machines

Detect paper roll availability and paper breakage during feeding; automatically stop equipment to prevent roller damage.

2. 食べ物 & Beverage Processing (IP67 / IP69K Washdown Models Mainly Used, 例えば. SICK WL160)
3. Filling Production Lines

Empty bottle in-position detection, full bottle identification, defective missing bottle rejection; position signal transmission for sauce barrels and cans on conveyors.

2. クリーニング & Sterilization Stations

Spray washing and cooking equipment with IP69K high-pressure wash resistance for oily and humid environments; polarization eliminates false reflection from stainless steel tanks.

3. 仕分け & 運ぶ

Diversion and reversing for snack packaging bags, meat pallets and cartons via matching air cylinders for lane separation.

4. Warehouse Palletizing

Carton in-position detection, pallet presence verification, positioning limit for robotic material pick-up.

3. Logistics Warehousing & Express Sorting
4. Conveyor Belt Material Detection

Detect blockage of cartons, parcels and express packages to control belt start/stop and speed regulation.

2. Cross Sorters & Wheel Sorters

Trigger barcode scanning and sorting diversion when parcels arrive; filter empty flow channels without packages.

3. 自動倉庫 / Stacker Crane Limit Detection

Upper/lower travel limit for lifting platforms, fork entry/exit in-position detection, shelf occupancy monitoring.

4. Tote & Plastic Pallet Identification

Reject empty pallets and release loaded pallets to prevent stacker crane collisions.

4. 工作機械, 金属加工 & 自動車製造 (Polarized Retro-reflective Mandatory)
5. Metal Workpiece In-Position Detection

Positioning of steel/aluminum sheets in stamping, CNC lathe and milling machine processes; polarization filters eliminate false triggering from specular metal reflections.

2. Automated Silo Material Feeding

Detection of bar and plate stock presence; halt equipment and alert operators for material replenishment when stock runs low.

3. Tooling Fixture Limit Detection

Confirmation of robotic workpiece gripping and fixture full closure signals.

4. Automotive Welding & Coating Lines

Detection of car body shell and frame conveyance position; dustproof and waterproof variants for coating workshops with long-distance car body detection capability.

5. Auxiliary Safety Detection for Punch & Bending Machines

Alarms for material jamming and scrap accumulation.

5. 3Cエレクトロニクス & Automated Assembly Equipment
6. プリント基板 & Plastic Housing Conveyance Presence Detection

Detection of circuit board production lines and ejection of injection-molded phone housings.

2. Small Material Limit Positioning

Left/right and upper/lower origin limit for robotic slides, replacing mechanical limit switches with contactless, wear-free operation.

3. Packaging Housing Missing Part Detection

Detect presence of battery casings and connectors; automatically reject defective units with missing components.

4. Miniature Retro-reflective Sensors for Cleanrooms (Mini Square WL160 / O6 Series)

Installable inside compact equipment without false triggering caused by dust.

6. 木工, ゴム & プラスチック, Building Material Machinery
7. Wood Panel Conveyance Detection

Detect board presence on wood cutting and edge banding machines; halt equipment upon material breakage.

2. Plastic Extrusion Production Lines

Count output of PVC/PE plastic pipes and aluminum extrusions, trigger alarms for pipe jamming.

3. Ceramic Tile & Stone Conveyor Lines

Detect tile conveyance position and missing tiles; high-protection variants for ceramic dust environments.

7. General Automation for Door Control, リフティング & Logistics Hoisting Equipment
8. Automatic Doors, High-Speed Roller Shutters, Industrial Sectional Doors

Position limit for door bodies, obstacle detection in door passage to prevent pinching personnel; long-distance retro-reflective sensors suitable for large industrial doors.

2. Lifting Platforms, Loading Dock Levelers

Upper/lower travel limit for platforms, truck arrival detection.

3. Forklift Anti-Collision & Zone Protection

Light curtain protection for factory aisles, alarm triggered upon unauthorized vehicle entry.

8. リチウム電池, 新エネルギー, 化学薬品 & 軽工業
9. Lithium Battery Electrode & Cell Conveyance Detection

Detect cell pallet presence and trigger alarms for broken roll stock; inverter EMI resistant models are adopted.

2. Chemical Packaging Lines

Detection of paint bucket and fertilizer bag presence; Pepperl+Fuchs explosion-proof retro-reflective sensors selected for hazardous explosion-prone areas.

9. General Applications for Small Non-Standard Automation Equipment
10. Equipment Origin & Travel Limit

Replaces mechanical limit switches for longer service life with zero mechanical impact wear.

2. Material Blockage & Overflow Alarm

Detect clogging at silo discharge ports and stop equipment timely to prevent jamming.

3. Conveyor Diversion & Rejection Control

Activate air cylinders to push out defective products once the light path is blocked by faulty items.

Summary of Application Advantages: Retro-reflective vs Through-Beam / Diffuse-Reflective Sensors

1. Wiring only required on one side; reflectors need no wiring, cutting installation and cabling costs;
2. Long stable sensing distance (3 ～ 30 メートル), while diffuse-reflective sensors lose stability at long ranges;
3. Polarized variants support detection of metallic, glossy and transparent objects; diffuse-reflective sensors suffer frequent false triggers from reflective surfaces;
4. Ideal for long conveyor belts, large industrial doors, automated warehouses and long-distance detection on heavy machine tools.

Unsuitable Scenarios for Retro-reflective Sensors

1. Ultra-thin tiny workpiece detection (light path cannot be fully blocked; diffuse-reflective or laser sensors are preferred);
2. Workpieces that permanently cover the reflector surface (repeated faults due to dust and oil coating the reflector);
3. Applications requiring identification of tiny protrusions without full light path blockage by the workpiece (switch to diffuse-reflective sensors).