Holmatro HDR 50 ST hydraulic door opener
Door opener designed for use on inward opening doors with multiple locking devices. Consists of a spreading cylinder to fix the door opener between the door posts and a pushing cylinder to push the door open. Various accessories with quick-lock connection system are available for optimal grip on different types of door frames. To switch between operation of the spreading cylinder and pushing cylinder you simply pull over a handle on the hand pump.
Product details
- Low visibility
- Silent operation with hand pump
- High spreading and pushing forces
- Low ready for use weight
- Adaptable to every door width - spreading jack manually extendible in 4 positions over 200 mm - hydraulically extendible with another 125 mm - can also be used with extension piece of 275 mm
- Quick installation and operation
- Standard with - Round pushing plate, 2 general grip heads, Extension piece, Synthetic carrying/storage case: dimensions (L x W x H) 600 x 400 x 184 mm, Adjustable carrying strap
Technical specification
max. working pressure - 720 bar/10,443 psi
capacity (spreading jack) - 47 kN/10,566 lbf
capacity (pushing jack) - 51 kN/11,465 lbf
return of plunger (spreading jack) - spring return
return of plunger (pushing jack) - gravity return
hydraulic system - 2 x single hose / single acting
min. length incl. grip heads (spreading jack) - 720 mm/28.3 in
mechanically extendible in 4 steps of 50 mm (spreading jack) - 50 / 100 / 150 / 200 mm/1.9 / 3.9 / 5.9 / 7.9 in
stroke spreading cylinder - 125 mm/4.9 in
max. length excl. extension piece (spreading jack) - 1045 mm/41.1 in
length extension piece (spreading jack) - 275 mm/10.8 in
max. length incl. extension piece (spreading jack) - 1320 mm/52.0 in
stroke pushing cylinder - 300 mm/11.8 in
weight, ready for use - 14.7 kg/32.4 lb
weight, incl. case - 18.2 kg/40.1 lb
required oil content - 295 cc/10.0 oz
temperature range - -20°C - + 55°C/-4°F to 131°F