Telescopic Boom Crawler Crane Hydraulic Cylinder
Product Overview
Telescopic Boom Crawler Crane Hydraulic Cylinder is a heavy‑duty high‑safety Hydraulic Cylinder. As the key executing component inside crawler crane hydraulic system, this Hydraulic Cylinder provides reliable thrust for lifting, boom luffing, boom telescoping and outrigger actions of crawler lifting Machine. It withstands huge variable load, strong vibration, impact and outdoor complex climate during long‑time construction work. Adopting thick‑wall high‑strength cylinder barrel and heavy‑duty combined sealing kits, it features excellent pressure‑holding and anti‑fatigue performance. It is widely used for original equipment assembly, equipment renovation and aftermarket spare‑parts replacement of telescopic boom crawler crane Machine.
Technical Specifications
- Model: Telescopic Boom Crawler Crane Hydraulic Cylinder
- Product Category: Hydraulic Cylinder, engineering heavy‑load crane cylinder, including boom telescopic cylinder, luffing cylinder, outrigger cylinder
- Structure: Double‑acting welded cylinder, multi‑stage telescopic structure optional
- Rated working pressure: 21‑35 MPa; test pressure reaches 1.5 times rated pressure
- Bore: 80‑360 mm; Rod diameter: 50‑320 mm; Stroke can be customized up to 22000 mm
- Working medium: Anti‑wear hydraulic oil for mobile engineering hydraulic system
- Working temperature: ‑30℃ ~ +90℃
- Cylinder barrel: High‑strength seamless alloy steel tube
- Piston rod: High‑frequency quenched with thick hard‑chrome‑plated surface, optional anti‑corrosion treatment
- Feature: Anti‑buckling, anti‑impact and anti‑fatigue structure; built‑in stroke‑end buffer; multi‑layer heavy‑dustproof sealing; stable pressure‑holding, low internal leakage; perfectly matches the hydraulic system of crawler crane Machine
- Applicable equipment: All kinds of telescopic boom crawler crane lifting Machine
Working Principle
High‑pressure hydraulic oil from crane main hydraulic system flows into rod‑less chamber and rod chamber of this Hydraulic Cylinder. Driven by hydraulic pressure, piston rod extends and retracts to realize boom stretching‑retracting, boom luffing, outrigger opening‑closing of lifting Machine. Matched with counterbalance valve and hydraulic lock, this Hydraulic Cylinder locks oil circuit reliably to prevent unexpected load dropping. It converts hydraulic energy into powerful mechanical force to guarantee safe lifting operation, and effectively protects the whole hydraulic system from overload damage under complicated construction‑site conditions.
Core Advantages
1. Heavy‑load optimized mechanical structure, outstanding anti‑buckling and anti‑fatigue capacity, adapts to frequent variable‑load operation of crawler crane Machine.
2. Heavy‑duty multi‑combination sealing system, stable static pressure‑holding performance, greatly reduces leakage risk of complete hydraulic system under hoisting status.
3. Built‑in buffer mechanism effectively relieves stroke‑end impact, lowers vibration of whole Machine and extends service life of the Hydraulic Cylinder.
4. High‑quality surface treatment of piston rod, good wear‑resistance and outdoor corrosion‑resistance, suitable for field construction environment.
5. Support customized bore, stroke and mounting forms; mainstream standard installation interfaces, convenient for on‑site disassembly, overhaul and spare‑parts replacement.
Application Range
Telescopic Boom Crawler Crane Hydraulic Cylinder is an indispensable actuator for crawler lifting Machine. It completes core boom‑telescoping and luffing driving tasks in crane hydraulic system. Widely supplied for construction machinery OEM factories, equipment repair yards and global aftermarket spare‑parts business for engineering hoisting industry.
