China 430 Ton Hydraulic Jack Self-Locking Hydraulic Jack for Construction

Introduction
Self-locking hydraulic jack is mainly used in places that need to support heavy objects for a long time. It can still support heavy objects when the oil pressure is removed, and it is safe and reliable. It can be used underwater, for single-acting, for load retraction, and the nut self-locking makes the load safer. Especially in large projects, it is easy to operate and control. It is designed with a device to hold pressure and a built-in pressure relief valve to prevent overload for protection. These designs are used to protect the jack for safe operation. This jack adopts high-pressure hose and threaded joint connection, which is quick to use and overcomes the oil leakage of fast traditional joints.It is mainly used for equipment installation, lifting and dismantling operations in various industries such as electric power, construction, machinery manufacturing, mining, railway,bridges, and shipbuilding.
Technical Data

MODELCarrying capacity
T(KN)Stroke
(mm)Effective area
cm2oil capacity
(cm3)Height
(mm)Stretch height
(mm)Diameter
(mm)Weight
(kg) CLL-50255(489)5071.3356.516421412516 CLL-50410071321431421 CLL-5061501069.526441426 CLL-508200142631451431 CLL-50102501782.536461436 CLL-5012300213941471441 CLL-1002100(889)50133.3666.518723716531 CLL-1004100133323733739 CLL-10061501999.528743748 CLL-1008200266633753757 CLL-100102503332.538763765 CLL-10012300399943775774 CLL-1502150(1333)5019899020925920553 CLL-1504100198025935966 CLL-1506150297030945978 CLL-1508200396035955992 CLL-150102504950409659105 CLL-150123005940459759118 CLL-2002200(178)50266.51332.52432932 2 3 583 CLL-20061503997.5343493118 CLL-200102506662.515443693153 CLL-2502280(2489)50366.41832249299275116 CLL-25061505496349499163 CLL-250102509160449699210 CLL-3002350(3111)504572285295345310173 CLL-30061506855395545233 CLL-3001025011425495745293 CLL-4002430(3821)505592795335385350251 CLL-40061508385435585327 CLL-4001025013975535785403 CLL-5002565(5022)507303650375425400367 CLL-500615010950475625467 CLL-5001025018250575825568 CLL-6002660(5866)508574285395445430447 CLL-600615012855495645563 CLL-6001025021425595845680 CLL-8002880(5866)5011795895455505505711 CLL-80061505895555705871 CLL-80010250294756559051031 CLL-100021080(9600)15014657325495545560951 CLL-1000650219755957451143 CLL-100010250366256959451335

The parameters in the table may be changed due to improvement without notice
Notice
a) If there is a runaway phenomenon during use, you can first loosen the oil drain screw on the pump body, lift the pump body upright and run it downward, and then tighten the drain screw to continue using.
b) When there is a load, never remove the quick connector .
c) This machine uses oil as the medium, so the machine must be well maintained to avoid clogging or oil leakage.
d) For new jack or jack not used for a long time, there is more air in the cylinder. The piston rod may suddenly vibrate slightly when you start using it. The hydraulic jack can be reciprocated 2-3 times without load to eliminate air in the cavity. For jacks that have been idle for a long time, the hardening of the seals will affect the service life of the hydraulic jacks. Therefore, when the hydraulic jacks are not in use, it should be reciprocated 2-3 times a month without load.
Our Company Jiangyin Eternal Heavy Industry Co., Ltd was established in 22, Apr. 2008. Our products mainly including: hydraulic baler, hydraulic shear, hydraulic cylinder and metallurgical Equipment. We could manufacture all kinds of hydraulic baler and hydraulic shear, pressure up to 1000 tons, and our machines have been exported to many countries.
Our hydraulic cylinders are widely used in construction machinery, mining machinery, hydro power project, offshore drilling platform, steel plant equipment, marine machinery, hydraulic lifting system, metallurgical equipment, forging equipment etc. Max cylinder bore size reach 1,000 mm, max cylinder stroke reach 12 meter, max test pressure could reach 50Mpa. Our cylinder has passed through BV certification.
We could also manufacture all kinds of metal extrusion press, pipe upsetting machine, including all kinds of steel plant spare parts.
Our factory has 15,000 square meters and have heavy duty workshop with area 8,000 square meters. There is double layer crane in the work shop. The lifting height could reach 16 meter while lifting capacity could reach 75 tons.
Our company passed the ISO9001: 2015, ISO14001: 2015, OHSAS18001: 2007, BV marine certification, API certification etc. Till now, our products have been exported to nearly 50 countries and own good reputation from our customers. You are welcome to visit our company.