Hydraulic Jack

E type Power Jack S

Designed to be lightweight and compact.
Pressure resistance test is 100% of lifting capacity, allowable lateral load is 1/20 of lifting capacity.
Sliding portion of Piston is made from copper alloy and Piston rod is made hard chromium electroplating.
Cylinder, Piston are heat treated SCM435 steels.
Port thread of coupling is NPT3/8.

Download Catalog

E type Power Jack H

Designed to be lightweight and compact.
Pressure resistance test is 100% of lifting capacity, allowable lateral load is 1/20 of lifting capacity.
Sliding portion of Piston is made from copper alloy and Piston rod is made hard chromium electroplating.
Cylinder, Piston are heat treated SCM435 steels.
Port thread of coupling is NPT3/8.
Install fall prevention valve to prevent the load from falling even if piping, hose gets damaged.
Consider a use of safety valve for jack, if necessary, not to block the return circuit of a double-acting jack.
For hydraulic jack with handle for hydraulic return, there are 3 items of E30H20,E30H35,E50H15.

Download Catalog

ET type Power Jack H

Pressure resistance test is 100% of lifting capacity, allowable lateral load is 1/20 of lifting capacity.
Sliding portion of Piston is made from copper alloy and Piston rod is made hard chromium electroplating.Cylinder, Piston are heat treated SCM435 steels.
Port thread of coupling is Rc1/2, 3/4..Install fall prevention valve to prevent the load from falling even if piping, hose gets damaged.Consider a use of safety valve for jack, if necessary, not to block the return circuit of a double-acting jack.

Download Catalog

EL type Low Profile Jack S

EF type Flat Jack S

Osaka Jack Hydraulic Jack EL type Low Profile Jack S (Spring return) type EF type Flat Jack S (Spring return) type

5 series of EL types and 5 series of EF types are standardized.
Great for fine adjustments in confirmed areas or machinery installation in extremely narrow spaces.
Pressure resistance test is 100% of lifting capacity.
Select hydraulic pumps in accordance with Jack’s connected units & the above required oil volume.
Receive load over the entire area of piston head and base.
Port thread of coupling is NPT3/8.

Download Catalog

EC type Center hole Jack S Type

Osaka Jack Hydraulic Jack EC type Center hole Jack S(Spring return)Type

1. Pressure resistance test is 100% of lifting capacity, allowable lateral load is 1/20 of lifting capacity.
2. Sliding portion of piston is made from copper alloy and piston rod is made hard chromium electroplating.
3. Cylinder, Piston are heat treated SCM435 steels.
4. Port tread of coupling is NPT3/8.
5. Even if hoses damaged, load holding valves not to fall rapidly are recommended. ( Option )

Download Catalog

EC Type Hollow Jack H Type

Osaka Jack Hydraulic Jack EC Type Hollow Jack H(Hydraulic return)Type

1.  Lightweight, easy to handle mechanism for a lot of outside work.
2. Hollow of rod is applicable for tensioning such as wire , strand , bolt, rod
3. When attached head cap, standard hydraulic jack can use.
4. Sliding portion of piston is made from copper alloy and piston rod is 1/20 of lifting Capacity.
5. Pressure resistance test is 100% of lifting capacity, allowable lateral load is 1/20 of lifting capacity.
6. Cylinder, Piston are heat treated SCM435 steels.
7. Select hydraulic pumps matched jack’s connected units and the below required oil volume.
8. Consider a use of safety valve for jack, if necessary, not to block the return circuit of a double acting jack.

Download Catalog

L J A Type Aluminum Jack Type

Osaka Jack Hydraulic JackLJA Type Aluminum Jack (Spring return)Type

1. Main parts, such as tube and piston rod are made of aluminum(except 100A10)
2. Bottom and corner parts are made of steel.(except L J A 100 A 10).
3. Sliding portion of rod is made from hard anodized aluminum to enforce wear resistance.
4. Pressure resistance test is 100% of lifting capacity.
5. Select hydraulic pumps matched jack’s connected units and the below required oil volume.
6. Port thread of coupling is NPT3/8.
7. Consider a use of safety valve for jack, if necessary, not to block the return circuit of a double acting jack.
8. Avoid to use high frequency, lifting over limitation line.

Download Catalog

L J A Type Aluminum Jack Type

Osaka Jack Hydraulic Jack JFN type Low Profile Jacks with Safety Nut S(Spring return)Type

For replacement shoes, palcing at highway or viaduct for railway and other bridge between bridge stand and girder.
Equipped with safety nut for replacement of only shoe based on normal EF series.
Standardized each 4 types of JFN Type and JFNR Type ( tilting saddle ) from 100 ton to 300ton.
1. Receive load over the entire area of piston head and base.
2. Port thread of coupling is Rc3/8.
3. Applicable for hand operated pump or electric motor driven pump. Equipped with a safety nut for load retention.
Rod returns by spring.
Usable for minor adjustment of machinery or lifting up for narrowest space.

Download Catalog

Z Type Power Jack S Type

H Type / G type

Osaka Jack Hydraulic Jack ZType Power Jack S(Spring return)Type H(Hydraulic return)Type / G(Gravity return )

Lightweight, compact design.

Pressure resistance test is 100% of lifting capacity, allowable lateral load is 1/50 of lifting capacity.
Piston rod is made hard chromium electroplating.

Applied to super liquid high pressure such as high pressure precision forming press, nuclear plant, ship yard, industrial diamond processing.
G Type Jack ; outer force is required when piston rod returns.
Applicable for propeller setting.

Download Catalog