Trailer Ramp Door Spring Assist Adjustment

8 and 8 5 wide 2 wheel 2 spring.

Trailer ramp door spring assist adjustment.

Overhead mounted spring assists allow easier closure of trailer ramp doors. Ramp door spring assist overhead. Sizes range from assists for 5 wide trailers to 8 5 wide trailers. We ship over 35 000 pounds every day and offer a huge variety of material types shapes and fabrication hardware as well as the following processing services.

Initial fabrication of trailer ramp assist spring. All mounting hardware included except for mounting bolts. The overhead ramp door spring system is designed for enclosed trailers. I have a 7 enclosed trailer with rear ramp door that has 2 torsion springs.

You might also consider taking the trailer to someone who sells them for the adjustment. The ramp springs that we carry fit 1 1 2 inch diameter hinge pins and are designed for use with heavy duty steel ramps like those on equipment trailers or car haulers. Have two new cables and know how they came off the drums. Page 1 of 2 trailer ramp door torsion spring winding posted in trailer talk.

Trailer ramp springs are heavy duty torsion springs which work as a lift assist to take the majority of weight off of the gate ramp lid. When starting a new torsional trailer spring design you must know the following parameters. Again be very careful and have a helper with you. So my door had to be at least propped open almost 2 feet.

My trailer door is an easy 500 lbs and as i remember it has 5 turns on the springs. The mounting bracket has two 3 8 holes that allow the installer to bolt the spring to the rear header. 5 and 6 wide 1 wheel 1 spring. A typical horse trailer or utility trailer ramp uses 3 4 inch hinge pins and would require two ramp springs with a 3 4 inch inner diameter.

Cables are wound on drum and 1 shaft is clamped with vise grips to prevent. Press brake bend. So the spring is under substantial tension at the adjuster collars always. Single spring 96 2 x 60 lbs.

You will find that design assistance here in this article. But all trailers are different so this might be an alternative. Since 1982 all metals supply in oroville ca has provided metal processed metal and industrial hardware to northern california repair shops and industry and manufacturing. Plus my spring itself has about 7 full winds on it even with the trailer door closed.

The system features a double drum and cable. 7 wide 2 wheel 1 spring.