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Ningbo Tianyi Shaft Co., Ltd.

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2026

01-12

Construction & Heavy Equipment Hauling

Trailer Jacks level the trailer on uneven ground before loading an excavator, to support the trailer independently after the truck detaches , and to adjust deck height for drive-on ramps.Trailer Couplers have a locking latch mechanism and a reinforced design to handle the dynamic stress of loading heavy machinery.

2026

01-12

Marine & Boating

Trailer Jacks feature a large, pivoting wheel or caster for easy maneuvering on pavement and ramps.Trailer Couplers are often galvanized. Proper sizing is critical, as the sudden stop when launching/retrieving a boat creates significant stress on the coupler and hitch.

2026

01-12

Automotive & Racing

A low-profile, swing-up jack is common to avoid dragging on steep driveway aprons. A standard ball coupler is used, but the focus is on a secure, rattle-free connection to protect the valuable cargo. For towing behind motorhomes , specialized couplers are used that connect directly to the towed vehicle's frame.

2026

01-12

Utility & Commercial Services

A sturdy, simple A-frame crank jack with a wheel is the workhorse. It needs to be reliable for multiple hitches/unhitches per day. Fold-down tongue jacks are common on smaller utility trailers to save space in crowded yards. The standard 2" ball coupler dominates. Key features include easy latching and durability against constant bumps, weather, and occasional overloads.

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Sales Phone

+86-574-86572085

zhenlonghe@tianshengchina.com

Address

No. 548, Nanyi West Road, Luotuo Industrial Zone, Zhenhai District, Ningbo City, Zhejiang

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