Customized Heavy Duty 7pin Trailer Cord Spiral Coiled Cable DC Extension Cable

• Customization: Available
• Certification: ISO9001
• Conductor Material: Copper
• Model NO.: 7Pin Trailer Cord Spiral Coiled Cable
• Sheath Material: TPE
• Plug Type: Cable Harness
• Insulating Materials: PVC
• Input Power: DC Power
• Product Name: 7pin Trailer Cord Spiral Coiled Cable DC Cable
• Sample: Provided
• Length: Customized
• Rated Voltage: 24V
• Conductor: Tinned Copper
• Color: Black/Customized
• MOQ: 500 PCS
• Lead Time: 2 Weeks
• Feature: Good Elasticity
• Transport Package: Carton
• Specification: Customized
• Trademark: LANKA
• Origin: Shanghai
• HS Code: 8544421100
• Production Capacity: 50000PCS/Month
• Package Size: 26.00cm * 24.00cm * 22.00cm
• Package Gross Weight: 2.000kg

Product Description

Product Description

Customized Heavy Duty 7Pin Trailer Cord Spiral Coiled Cable DC Extension Cable

Product Name	Heavy Duty 7Pin Trailer Cord Spiral Coiled Cable
Insulated Material	PVC
Rated Voltage	300V
Conductor	Tinned Copper
Jacket	TPE
Length	Customized
Color	Black/Customized

 

Introduction

Customized Heavy Duty 7Pin Trailer Cord Spiral Coiled Cable DC Extension Cable
 

1. Product Description

Trailer Cable Spiral Coiled Cable is a retractable power and signal transmission cable designed for trailers, RVs and commercial vehicles. Its unique spiral structure allows the cable to freely expand and contract between 1 meter (retracted state) and 3 meters (stretched state) while maintaining stable power and signal transmission. This cable is suitable for 12V/24V vehicle systems, integrating power supply, lighting control (turn signals, brake lights, reverse lights, etc.) and grounding functions, and is an ideal solution for connecting tractors and trailers.

2. Core advantages
Intelligent telescopic design
1:3 telescopic ratio (1m contraction/3m extension), automatic rebound, avoid entanglement
Patented spiral structure to ensure long-term durability

High load and stable transmission
7-core independent conductors: 5.26mm2 10AWG x2C+3.31mm2 12AWG x1C+2.08mm2 14AWG x4C
Support 25A high current (power line) and 5A signal current

Full environmental protection
IP67 waterproof and dustproof (can be immersed for a short time)
Cold and high temperature resistance (-40ºC~+105ºC)
Anti-oil & UV (no aging for long-term outdoor use)

Standardized interface
7-pin male and female connectors, plug and play
Color coding + digital numbering, anti-wrong insertion design

Super durability
Passed 50,000 telescopic cycle test

3. Technical specifications

Parameters	Specifications
Conductor structure	7 cores (4 power + 3 signals)
Rated voltage	24V DC (compatible with 12V system)
Rated current	25A (power line) / 5A (signal line)
Retractable range	1m (retracted) -3m (extended)
Protection level	IP67 (completely dustproof and waterproof)
Operating temperature	-40ºC-+105ºC
Tensile strength	≥150kg (static)
Color identification	ISO standard color code + digital number
Certification standards	ISO 1185, SAE J560, CE

4. Typical application scenarios
Freight logistics
Power/lighting system connection between trucks and trailers
Brake lights & turn signal transmission of container trailers

RV travel
Power & lighting control of tractors and RVs
Power supply for external devices in campers

Engineering & agricultural vehicles
Lighting and hydraulic control of excavators/tractor trailers
Power transmission of agricultural equipment (such as planters and harvesters)

5. Purchase suggestions

Requirements	Recommended models	Features
Conventional freight	TC-SP7-STD	Basic model, 25A load, IP67 protection
Extremely cold areas	TC-SP7-ARCTIC	-50ºC cold-resistant, antifreeze connector
Corrosive environment	TC-SP7-COR	316 stainless steel connector, resistant to salt spray/chemicals
Long-distance extension	TC-SP7-EXT	can be extended to 5m (with signal amplifier)

6. Safety use guide
Installation requirements
Make sure the vehicle is turned off before plugging and unplugging the cable
Check the corresponding function of each pin (avoid wrong connection)

Operation taboos
It is forbidden to operate at full load in a fully retracted state
Avoid the cable from contacting high-temperature parts such as the exhaust pipe

Maintenance recommendations
Clean the connector monthly
Test the line conductivity & insulation resistance quarterly

7. FAQ
Q1: Can it be used for electric or hybrid vehicles?
Yes, but ensure that the voltage matches (12V/24V) and avoid interference from the high-voltage system.

Q2: What should I do if the connector is flooded?
Immediately turn off the power and blow it dry with compressed air (hot air baking is prohibited). IP67 protection can be waterproof for a short time, but it needs to be replaced if it is immersed for a long time.

Q3: Maximum number of bends allowed?

Standard version ≥50,000 times of extension and retraction.

Q4: Can the signal cable transmit data (such as camera signals)?

Only analog signals (lighting control) are supported. If data transmission is required, the shielded enhanced version must be selected.

8. Summary
Trailer Cable Spiral Coiled Cable is a high-reliability solution for connecting trailers, RVs and commercial vehicles. Its intelligent retractable design, high current carrying capacity and full environmental protection performance make it the first choice in logistics, engineering and outdoor travel.

Humanity Design

 

The cable sheath is PUR or TPE: good elasticity, oil resistance, wear resistance, corrosion resistance, and excellent rebound effect.

The conductor material is oxygen-free copper wire: the pure copper wire core with extremely strong conductivity is used for stable transmission.

 

The connector shell is nylon/aluminum alloy: shock-resistant, drop-resistant, durable, and deep waterproof.

Connector copper pin: brass pin nickel-plated, anti-oxidation, strong conductivity, long service life

 

Application

 

Company Profile

Lanka Industrial Automation Shanghai Co.,Ltd is an advanced manufacturer integrating research and development, production, sales and service together, We specialize in developing and manufacturing special cables.

The main products are power cords, robot cables, reel cables, flat cables, spiral cables, CE certified flexible cables, data cables, special customized cables, etc. The company has a strong technical research and development team, the core technical team consists of several professional Composed of a team of senior engineers with professional background, the technical team makes full use of profound professional theory and rich practical experience to independently research and develop, constantly penetrate the heart, and the quality is guaranteed.

In 2020, it will obtain the TILVA certification for industrial robot flexible cables from the National Robot Testing and Evaluation Center. Products are widely used in key projects such as industrial robots, CNC machine tools, laser equipment, logistics systems, packaging equipment, lifting systems, lifting equipment, etc. Excellent quality and service have received widespread praise from the industry and customers.

 

Sample

Give your requirements to us, we recommend the suitable cables for yousamples is free if we have stock, if not, we could customize it

then charging some cost for sample.The samples'fee will return to you when we got your order more than 1000USD.

Usually, samples will provide within 3 days.if you need to customize then we need 1-2 weeks.

 

Payment

We accept bank transfer, Paypal and West union., if in some other way please check with us.

 

Warranty
If it is our quality problem then we will afford the freight for you to replace the cables.

Advantages
Production and testing equipment more than 100 sets,
R&D engineers: 12

management teams all have more thn ten years; work experience in cable industry.

 

Packaging & Shipping

Packaging
Spiral cable and cable harness are packed in carton, then in wooden pallet. 

PVC cable and Pur cables  are packed in wooden drum and in wooden box.

We will pack the cable in good condition according to the size.

Delivery

According to customer's choices.Sample usually sent by express. Bulk goods can be sent by air, by sea.
Please contact with us for shipping cost., we have discount with DHL, TNT, UPS, FEDEX and cooperated with shipping agent If you don't have the express account.
Lead time:Normally, 10-20 days

Certifications

     

FAQ

Q 1: I didn't find my needed model in this page.
Answer: Dear Friends, ecatalog will emailed to you asap when you contact with us. Also, we supply customization service. So, contact us !

Q 2: What's your Minimum Order Quantity?
Answer: Normally, 10pcs for mass production.

Q 3: When can I get the price and what's the validity?
Answer: usually within one day.Validity is 30 days

Q 4: What's your payment terms?
Answer: By T/T 30% in advance ; Balance 70% before shipment. 

Q 5: What's your delivery time?
Answer: It depends on whether we just have the stock for your type. Or, it takes about 10 - 30 days for normal orders.

Q 6: What's your package method ?
Answer: Usually, it's cartons, and for big cable, we use wooden drum.

Any other questions please contact with us freely:)