Swing Unit

Seal – The Swing Unit uses high-grade polyurethane seals that prevent grease leakage and block contaminants. Each seal maintains proper lubrication inside the swing gear ring and bearing, reducing wear even under heavy lateral loads.

Cover – Machined from ductile iron, the cover protects the upper swing drive mechanism. It acts as a shield against dust and debris while offering easy access points for routine inspection of the part’s internal gears.

Bolt – High-strength grade 10.9 bolts secure every structural joint. These bolts are zinc-plated to resist corrosion, providing reliable clamping force that keeps the part rigid during sudden starts and stops.

Washer – Hardened steel washers distribute bolt preload evenly across mating surfaces. They prevent loosening caused by vibration and dynamic slewing forces, extending the part’s service life in demanding applications.

Platform-Swing – The swing platform is a fabricated steel structure that carries the upper cab and boom. Precision-machined mounting surfaces guarantee perfect alignment of the Swing Unit, reducing stress concentration and metal fatigue.

Hydraulic main pipeline – This high-pressure pipeline feeds oil to the swing motor. Built from seamless steel tube with flanged ends, it ensures no pressure drop and zero leak risk, keeping the Swing Unit responsive at all times.

Bearing As-Swing – The swing bearing assembly includes hardened raceways and chromium steel balls. It supports full machine weight while allowing smooth rotation. Factory preload adjustment eliminates axial play inside the Swing Unit.

Lines-Pilot – Pilot lines carry low-pressure control signals from the joystick to the swing control valve. Their flexible yet reinforced construction ensures instant response and smooth metering of the Swing Unit’s acceleration and deceleration.

Cab – The operator cab is isolated from the Swing Unit through viscoelastic mounts, reducing vibration felt by the operator. Its reinforced floor integrates with the swing frame, providing rollover protection and ergonomic access.

Air Conditioner System – The condenser and compressor are mounted on the swing platform with vibration dampers. This arrangement prevents refrigerant line fatigue when the Swing Unit rotates continuously at full speed under high ambient temperatures.

Cover As – The cover assembly encapsulates the swing drive motor and final reduction gear. It is engineered with sound-damping material and cooling vents to keep the Swing Unit operating within optimal thermal range.

Counterweight – Mounted directly to the rear of the swing frame, the counterweight improves stability during heavy lifts. Its bolted attachment ensures that the Swing Unit experiences balanced load distribution, reducing bearing stress.

Power Train – The power train supplies torque to the swing motor through a robust driveline. It includes a dedicated hydraulic pump that prioritizes swing function, ensuring the Swing Unit never starves of oil even when other circuits are active.

Gasket – Precision-cut fiber gaskets seal joint flanges between the swing drive housing and the platform. They prevent oil weepage and keep contaminants out, directly contributing to the Swing Unit’s long-term reliability.

Shim-Counterweight – These laser-cut steel shims allow fine adjustment of counterweight position. By eliminating small gaps, they prevent rattling and ensure the Swing Unit remains perfectly balanced, which translates to smoother rotation cycles.

Our Swing Unit uses induction-hardened gear rings and triple lip seals, providing a 25% longer service life than standard aftermarket units. Every assembly is dyno-tested for vibration, noise, and torque output to guarantee smooth rotation under full rated load.

Direct factory sourcing lowers your cost per Swing Unit. We offer batch discounts and express logistics for urgent repairs. All swing bearings and bolts meet ISO 9001 standards, eliminating fitment risks and reducing total ownership expenses.

24/7 technical support via online inquiry (no phone numbers listed) and a complete digital catalog with torque specs. Replacement gaskets, shims, and pilot lines are kept in regional warehouses for two-day delivery worldwide.

100% inspection of every Swing Unit: runout less than 0.2mm, backlash within 0.5mm, and certified material traceability. From bolts to the counterweight shims, each part is serialized for seamless fleet management.