• EC type Hollow Jack (Hydraulic return type) EC30H25
EC30H25

  • Name: EC type Hollow Jack (Hydraulic return type) EC30H25
  • Order No.: 10080102
  • Brand: OSAKA
  •   Scope of supply:

* Features:
• This jack has a hollow in the center of the piston. Useful in pre-stressed concrete construction, such as high-rise buildings, bridges, power plants, tunnels, and other applications.
• Piston rod is plated with hard chrome.
• Piston rod seal protects against dirt. 
• Double-acting push & return jack.
• Screw-on saddle.
• With handle.
• Inner surface of piston rod is threaded.
• Allowable lateral load is 1/20 of lifting capacity.
Rod dia. (f) (mm)
67
Included coupler
B-6JG
Collar screw length (j) (mm)
40
Distance between ports (P) (mm)
305
Electric pump applicable
NEX-2 or GH1/2
Pulling force (kN(tf))
180 (18)
Cyl. outer dia. (D) (mm)
114
Saddle dia. (o) (mm)
62
Cyl. effective area (cm2)
47.71
Height to coupler (L) (mm)
32
Oil capacity (ml)
1200
Stroke (mm)
250
Base screw dia. (c) (mm)
4-M10 x 15L
Collar screw dia. (a) (mm)
M110 x 2
Saddle thickness (t) (mm)
10
Hand pump applicable
TWAD-1.3
Port size (m)
NPT3/8
Center hole dia. (q) (mm)
33
Cyl. bore dia. (d) (mm)
90
Capacity (KN(tf))
300 (30)
Closed height (H) (mm)
415
Rod screw dia. (b) (mm)
M48 x 1.5
Distance between base screw and middle base (s) (mm)
92
Distance between cylinder collar and cap (g) (mm)
13