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Front-Pin Square Jacks: Heavy-Duty Trailer Jacks for Demanding Applications

Views: 0     Author: Site Editor     Publish Time: 2026-10-04      Origin: Site

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Front-Pin Square Jacks are designed for heavy-duty trailers that require reliable lifting, stable support, and convenient operation. With a spring-return drop-leg mechanism and heavy-duty square steel construction, these trailer jacks are suitable for RVs, construction trailers, agricultural trailers, and tri-axle trailers.

Renqiu Chenwei Machinery Manufacturing Co., Ltd. specializes in manufacturing trailer jacks and lifting components. We can provide standard trailer jacks as well as customized solutions according to customers' requirements.

Key Features of Front-Pin Square Jacks

1. Spring-Return Drop Leg

The front-mounted locking pin allows the drop leg to be quickly extended or retracted. When the locking pin is released, the spring-assist mechanism helps return the foot pad, making daily operation faster and more convenient.

2. Heavy-Duty Square Tube Construction

The 4-inch square steel tube provides excellent strength and stability for heavy-duty trailer applications.

Depending on the specific configuration, the jack can provide:

  • Static capacity: up to 12,000 lb

  • Dynamic capacity: up to 10,000 lb

  • Travel: approximately 13 inches

  • Square tube: 4 inches

  • Foot pad: approximately 8.25 × 8.5 inches

For applications requiring higher stability and load capacity, two jacks can be used together.

3. Side-Wind Operation

The side-wind configuration provides convenient access to the crank handle and is suitable for a wide range of trailer designs.

A removable handle can also be supplied according to the customer's requirements, making transportation, installation, and maintenance easier.

4. Durable Surface Protection

The jack can be finished with a black powder coating to provide a durable and weather-resistant surface for outdoor trailer applications.

Other colors and surface treatments can be discussed according to project requirements.

Common Applications

Front-pin square trailer jacks are commonly used for:

  • RV trailers

  • Construction trailers

  • Tri-axle trailers

  • Heavy-duty utility trailers

  • Agricultural trailers

  • Equipment trailers

  • Commercial trailers

They are especially suitable for applications where frequent adjustment, stable support, and heavy load capacity are required.

Why Choose Chenwei Trailer Jacks?

Renqiu Chenwei Machinery Manufacturing Co., Ltd. is a professional trailer jack manufacturer with experience in manufacturing different types of trailer jacks.

Our product range includes:

  • 12,000 lb heavy-duty square trailer jacks

  • 5,000 lb A-frame trailer jacks

  • 2,000 lb swivel trailer jacks

  • 1,500 lb trailer jacks

  • Drop-leg trailer jacks

  • Side-wind and top-wind trailer jacks

  • Customized trailer lifting solutions

We focus on product quality, structural strength, reliable operation, and stable production. For customers with special requirements, we can also develop customized trailer jack designs based on drawings, samples, dimensions, load capacity, travel, mounting requirements, and other technical specifications.

Front-Pin Square Jack Manufacturer

Choosing the right trailer jack is important for trailer stability and safe operation. A heavy-duty square jack with a spring-return drop leg can provide both strong support and convenient adjustment.

If you are looking for a 12,000 lb trailer jack manufacturer or heavy-duty square trailer jack supplier, Renqiu Chenwei Machinery Manufacturing Co., Ltd. can provide standard products and customized manufacturing solutions.

Contact Chenwei Machinery for product specifications, drawings, samples, and quotation.

If you have any questions, please contact us via email or telephone and we will get back to you as soon as possible.

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