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Rack drives push-pull screening for greenhouse

Rack drives push-pull screening for greenhouse

ScreenDrive ERSD250 rack drive unitfor greenhouse

The RackDrive250 rack drives fitted with a rack plate is a low-maintenance drive for the push-pull screen systems in greenhouses. This rack drive together with theEP RW moto gearbox (5 rpm), forms an efficient combination which offers energy-, sun protection- and total shade screen systems . Its compact dimensions mean that the RackDrive250 rack drive is suitable for a large variety of screen systems. By fitting the optional sliding block the rack drive can also be used in non-horizontal screen systems.

The zinc-plated RackDrive250 rack drives are supplied with two mounting lips (lugs). Together with the counter-plates and bolt- lock-nuts connections (M8) or with a clamp mounting set, these are easily mounted onto greenhouse truss (lattice beam). The rack drives have fixing holes for wire stretchers which allow a stable connection to the greenhouse structure. The RackDrive250 rack drive is supplied with the mounting lips (lugs) facing in one direction (right) or with the mounting lips (lugs) facing outwards (left-right). The latter version is suitable for use with the clamp mounting set.

By fitting a gear reduction stage (i=1,8) and a hardened pinion, the torque in the RackDrive250 rack drive is effectively converted into a maximum outgoing drive forceof 1850 N (in folding). The rack drive is aligned to the push-pull tubes (27 or 32mm) using connecting units. The rack drive has an axial clearance from the drive pinion in order to take up the expansion variations between the lattice beam and the screen section. Plastic securing clips must be removed when the fitting is complete.

The drive shafts are fitted with long axle journals with flat sides. This makes it possible to fit prefabricated drive shafts fitted with weld/sleeve couplings or chain couplings after mounting the RackDrive250 drive shaft. The drive shafts are locked in the couplings by the accompanying shaft retaining clips. For the rack drives for the screen suspension, couplings with limited free-wheeling are available which will limit the force onto the folding drive shaft.

Art. no. Description [m] [F] Dyn [F] Stat [M] Dyn [M] Stat i [s']
kg N N Nm Nm mm
500290 RSD250-40\LR UNIT 2,1 450 1850 7,0 27,5 1,8 79,2
500285 RSD250-40\LL UNIT 2,1 450 1850 7,0 27,5 1,8 79,2
500280 RSD250-40\RR UNIT 2,1 450 1850 7,0 27,5 1,8 79,2
Hongtai Liu Road, Xiaoshan District

Hangzhou City

+86-13205713851

Mon to Fri 9am to 6 pm

[email protected]

Send us your query anytime!

ETU21-40 Rack drives for greenhouse

Rack drive for driving (external) screen systems. The pinion housing unit can be mounted on a 1" shaft tube (ø33.7 mm). The rack plate (H30-3 / H40-3) is secured underneath the push-pull tube and fixed by a coupling plate and a square bracket. The drive torque for the adjusting screw is 8 Nm.
Art. no. Description [m]
kg
500040 TU21-40 PINION HOUSE UNIT 0,62
Hongtai Liu Road, Xiaoshan District

Hangzhou City

+86-13205713851

Mon to Fri 9am to 6 pm

[email protected]

Send us your query anytime!

Sheet steel racks ERSD250/ETU21-40 Rack drives for greenhouse

Zinc-plated rack plate for pinion housing units RSD250 and TU21-40 suitable for the push-pull screen systems. The rack plate can be secured to the push-pull tube with the connecting set. Other lengths on reque
Art. no. Description [m] Sec. [L]
kg m mm
413949 RACK 40-3\L2941 5,8 3,0 2941
413953 RACK 40-3\L3142 6,2 3,2 3142
413956 RACK 40-3\L3594 7,1 3,66 3594
413950 RACK 40-3\L3946 7,8 4,0 3946
413951 RACK 40-3\L4448 8,6 4,5 4448
413954 RACK 40-3\L4939 9,8 5,0 4939
Hongtai Liu Road, Xiaoshan District

Hangzhou City

+86-13205713851

Mon to Fri 9am to 6 pm

[email protected]

Send us your query anytime!