Flexible Electrical Conduit Stainless Steel Square Lock (Retractable Type)
Flexible Electrical Conduit, WP-S1-2 series is manufactured with stainless steel strip by continuous wound in square lock profile. The size range of this series of flexible tube is ID 3.5~16.1mm. It is featured with excellent flexibility and its miniaturized diameter makes the tube be light and also pressure resistance. That offers benefit for deployment in complex or narrow spaces. The bare electrical flexible conduit can be directly used in a controlled environment. For those locations with splash or higher humidity, electrical flexible conduit with plastic jacket is recommended. That offers not only waterproof but also fire retardant. As for the demand of high abrasion resistance or preventing the interference of microwave or static electricity in the environment (EMC shielding), electrical flexible conduit with metal mesh braiding is the proper one to choose.
Specially applicable for protection of signal wire on tools, automation system or equipment, robot, access control, security system, etc.
Feature
-
Material:
Stainless Steel Square Lock (Retractable Type) -
Temperature Range：
-40℃~+350℃ -
IP Rating
IP 40 -
Flexibility :
High -
RoHS Compliance :
Yes -
Standard
Follow IEC standard, 2~3 joints are allowed in a length of 100M.
Parameter
| Part Number | ID (mm) | OD (mm) | Bending Radius (mm) | Tensile Resistance (kg) | Scaling Rate (%) | Package/Roll (m) |
|---|---|---|---|---|---|---|
| P035051S1-2 | 3.5±0.2 | 5.1±0.2 | ≤35 | ≥35 | >2% | 200 |
| P040060S1-2 | 4.0±0.2 | 6.0±0.2 | ≤40 | ≥50 | >5% | 200 |
| P045065S1-2 | 4.5±0.2 | 6.5±0.2 | ≤40 | ≥50 | >5% | 200 |
| P050070S1-2 | 5.0±0.2 | 7.0±0.2 | ≤40 | ≥50 | >5% | 150 |
| P055075S1-2 | 5.5±0.2 | 7.5±0.2 | ≤40 | ≥50 | >5% | 150 |
| P060080S1-2 | 6.0±0.2 | 8.0±0.2 | ≤40 | ≥50 | >5% | 150 |
| P065085S1-2 | 6.5±0.2 | 8.5±0.2 | ≤40 | ≥50 | >5% | 100 |
| P070090S1-2 | 7.0±0.2 | 9.0±0.2 | ≤40 | ≥60 | >5% | 100 |
| P075095S1-2 | 7.5±0.2 | 9.5±0.2 | ≤40 | ≥60 | >5% | 100 |
| P080100S1-2 | 8.0±0.2 | 10.0±0.2 | ≤40 | ≥65 | >10% | 100 |
| P090110S1-2 | 9.0±0.2 | 11.0±0.2 | ≤45 | ≥70 | >10% | 100 |
| P100120S1-2 | 10.0±0.2 | 12.0±0.2 | ≤50 | ≥80 | >10% | 100 |
| P115140S1-2 | 11.5±0.2 | 14.0±0.2 | ≤65 | ≥80 | >10% | 50 |
| P125157S1-2 | 12.5±0.3 | 15.7±0.3 | ≤85 | ≥80 | >10% | 50 |
| P144178S1-2 | 14.4±0.3 | 17.8±0.3 | ≤90 | ≥90 | >10% | 50 |
| P161195S1-2 | 16.1±0.3 | 19.5±0.3 | ≤95 | ≥120 | >10% | 50 |
Frequently Asked Questions
What is the Flexible Electrical Conduit WP-S1-2 retractable square lock conduit?
The Flexible Electrical Conduit WP-S1-2 series is a miniaturized stainless steel flexible conduit with a retractable square lock profile (stretched type). It features ultra-compact diameters (3.5-16.1mm ID), exceptional flexibility, lightweight construction, and pressure resistance, making it ideal for ultra-tight spaces in robotics, automation, and precision equipment.
What does "retractable type" mean?
The retractable type (stretched type) profile allows the conduit to compress and expand like a spring, reducing dimensions when not in use and expanding to full length when needed. This characteristic makes it perfect for compact installations where space is extremely limited, such as robotic arms, tool handles, and folding mechanisms.
What size range is available?
Flexible Electrical Conduit WP-S1-2 series offers 16 ultra-compact sizes ranging from 3.5mm to 16.1mm inner diameter. The comprehensive size range includes P035051S1-2 through P161195S1-2, allowing precise matching to any signal wire bundle regardless of diameter.
What is the temperature range?
Flexible Electrical Conduit WP-S1-2 operates reliably between -40℃ and +350℃, providing exceptional temperature performance suitable for extreme cold, high-temperature, and thermal cycling applications in robotics and industrial equipment.
What is the IP rating?
Flexible Electrical Conduit WP-S1-2 has an IP40 rating in bare form. For applications requiring water and moisture protection, plastic jacket or metal mesh braiding options are available to achieve higher IP ratings and fire retardancy.
What material and profile are used?
Flexible Electrical Conduit WP-S1-2 is manufactured from stainless steel strip wound in a retractable square lock profile. The square lock design provides exceptional mechanical strength, corrosion resistance, excellent flexibility, and lightweight construction ideal for miniaturized applications.
What is the bending radius and flexibility?
Flexible Electrical Conduit WP-S1-2 features high flexibility with bending radii ranging from ≤35mm (smallest sizes) to ≤95mm (largest sizes). This exceptional flexibility allows installation in ultra-compact geometries, narrow channels, and complex routing paths typical of robotic and automation equipment.
What is the tensile resistance rating?
Tensile resistance ranges from ≥35kg (smallest 3.5mm size) to ≥120kg (largest 16.1mm size). This ensures structural integrity and durability under mechanical stress, vibration, and repetitive flexing common in robotic applications.
What applications is Flexible Electrical Conduit WP-S1-2 designed for?
Flexible Electrical Conduit WP-S1-2 is ideal for signal wire protection in robotic arms, precision tools, automation systems, access control systems, security equipment, portable devices, surgical instruments, and any equipment requiring ultra-compact, lightweight cable protection with high flexibility.
Why choose stainless steel for retractable conduit?
Stainless steel offers superior corrosion resistance compared to galvanized alternatives, providing indefinite durability in humid, salty, and chemically aggressive environments. The inherent strength of stainless steel ensures the retractable mechanism maintains reliability through thousands of compression-expansion cycles.
What jacket and braiding options are available?
Flexible Electrical Conduit WP-S1-2 is available in multiple configurations: bare stainless steel (IP40) for controlled environments, with PVC jacket for water and fire protection, with stainless steel braiding for EMC shielding and abrasion resistance, with tinned copper braiding for superior conductivity, and combinations of jacket plus braiding for comprehensive protection.
Is Flexible Electrical Conduit WP-S1-2 RoHS compliant?
Yes, Flexible Electrical Conduit WP-S1-2 is fully RoHS compliant, ensuring no hazardous substances are used in manufacturing and meeting international environmental regulations.
What packaging quantities are available?
Flexible Electrical Conduit WP-S1-2 is available in rolls of 200 meters for smallest sizes (3.5-6mm ID), 150 meters for medium sizes (5-6mm), and 50-100 meters for larger sizes (11.5-16.1mm ID). Custom lengths can be cut to specific project requirements.
How does Flexible Electrical Conduit WP-S1-2 compare to WP-S1-1 (stretched type)?
Both use stainless steel square lock profiles. WP-S1-2 is the retractable/stretched type offering compressibility and compactness ideal for folding mechanisms and space-constrained applications. WP-S1-1 is the standard stretched type with different mechanical properties. Choose WP-S1-2 for retractable applications, WP-S1-1 for fixed installations.
What are the related configuration options?
Flexible Electrical Conduit WP-S1-2 bare stainless steel can be configured with protective options: WP-S1P2 (stainless steel + PVC jacket), WP-S1SB (stainless steel + stainless steel braiding), WP-S1TB (stainless steel + tinned copper braiding), WP-S1TBP1 (stainless steel + copper braiding + PVC jacket), WP-S1P2SB (stainless steel + PVC jacket + stainless steel braiding).
What makes retractable conduit special for robotics?
The retractable property reduces cable slack and reduces the space footprint when the robot is in rest position, while fully extending when the robot arm moves. This minimizes tangling, reduces maintenance, improves reliability through reduced flexing stress, and enables more compact robot designs.
How does stainless steel compare to aluminum for small diameter?
Stainless steel offers superior corrosion resistance, higher strength, better durability in harsh environments, and longer service life, while aluminum is lighter. For precision robotics and tools requiring reliability, stainless steel is the preferred choice despite slightly higher weight and cost.
What does "2-3 joints allowed per 100M" mean?
Per IEC standards, Flexible Electrical Conduit WP-S1-2 manufacturing allows 2-3 joints (welded connections) per 100 meters of continuous length. These joints do not affect the electrical or mechanical properties and are normal industry practice for flexibility manufacturing.
Can custom configurations be ordered?
Yes, custom configurations are available for special requirements including specific jacket materials, braiding types, colors, lengths, and combinations tailored to robotic or automation applications. Contact our engineering team at info@flexible86.com or +86-563-6636999 to discuss custom specifications.
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