Double-acting Stretching Jack

Model No：50-6000KN

Features

Stretching force：50-6000KN
Stroke：50-300mm
Max Working Pressure：70MPa

Double-acting design, hydraulic retraction
Hollow plunger design applying both for pushing and pulling.
Mounted with relief valve against over-loading
Wet painted surface provide superior corrosion resistance
each model equipped with quick connector and dustproof ca
Dustproof ring against dust and dirty to enlong cylinder life

Use Scope: This type of strentching jack is designed by combining the foreign advance technology and the actual using situation. Assisted With our another tool, super high pressure oil pump station, it can realize the basic function of stretching ( also for lifting function), featured with advantages of easy operating and maintaining. It is widely used in construction, ship-building, metallurgy, mining, railway and gas&petrol industries.

Mold	stret6ching force	Working Pressure	Through hole Dia.d	Cylinder I.D. D1	Inner Diameter D2	Plunger Rod Dia. D3	Cylinder O.D. D	Stroke L	Min Height L1	Distance between connectirs L2	Distance between connector and end L3
Mold	(KN)	(MPa)	(mm)	(mm)	(mm)	(mm)	(mm)	(mm)	(mm)	(mm)	(mm)
SJZ50-50	50	30	22	55	30	40	75	50	208	80	53
SJZ100-50	100	42	22	65	25	50	95	50	204	82	50
SJZ160-250	160	28	28	100	53	80	140	250	424	300	78
SJZ300-200	300	60	40	110	55	75	140	200	330	240	45
SJZ450-250	450	60	45	120	70	100	160	250	473	294	90
SJZ500-60	500	38	76	170	110	150	200	60	250	83	55
SJZ600-250	600	56	55	140	80	115	180	250	443	294	90
SJZ1000-200	1000	59	65	170	85	130	210	200	357	246	55
SJZ1200-200	1200	51	75	200	100	160	250	200	425	252	79
SJZ1500-200	1500	63	120	230	150	190	280	200	382	246	73
SJZ2000-200	2000	62	104	240	130	200	290	200	403	255	79
SJZ2500-200	2500	54	136	305	185	250	380	200	510	284	103
SJZ3000-200	3000	68	113	280	150	200	355	200	450	280	108
SJZ3000-300	3000	68	100	280	150	200	355	300	520	372	86
SJZ5000-200	5000	54	165	400	210	320	515	200	630	316	180
SJZ6000-200	6000	65	165	400	210	320	515	200	630	318	180
SJZ6000-300	6000	65	165	400	210	320	515	300	730	416	180

Use guide and cautions:

When using, pls followingbelow the issues as well as the general processes and procedures:

1.To ensure the correction of dissemination of the value, value must be calibrated together both for the jack and its adaptive pumping station. Above the table is about stretch force (lifting force) and its relevant hydraulic pressure, as reference for operation. And a reasonable regular inspection should be effected for value calibration. And in below cases the value should be recalibrated: a. After repair of the jack. b. after changing pressure gauge. c. other damage occured to the tool.

2. Refer to the figures of jack structure and hydraulic system diagram, pls use the high pressure hose to connect the cylinder and the pump station, just following below the instructions:

     (1)Start the pump station to run, adjust the over-flow valve to its working pressure (refer to the foresaid calibrated value);
    (2)switch the diversion valve, then the cylinder plunger will reciprocate to finish the act of stretching or lifting;
    (3)Power must be stopped to the pump station right after the cylinder finish its action, just to prevent the over-flow valve from the long time working status which may cause oil temperature and effect the use life of pump station.
    (4)More attention should be paid to the oil temperature in high temperature season, and when the oil temperature exceeding 70℃ pls take action to decrease the temperature.

Double-acting Stretching Jack Model No：50-6000KN

Double-acting Stretching Jack

Model No：50-6000KN