A GroupHES Company
 



 

Head Office Gloucester

Email
tel:01452 730774
fax:01452 731637

Birmingham

Email
tel:01213272664 fax:01213222488

Durham

Email
tel:01914106619 fax:01914111055

Leeds

Email
tel:01132707295 fax:01132703213

 

 

Catalogue Navigation Menu




 

 

 
Piston Pumps

OPEN LOOP VARIABLE DISPLACEMENT PISTON PUMPS
SD-90

Capacities 30cc-250cc/rev


Speeds up to 5,000rpm


Pressures up to 420bar
Sauer-Danfoss axial piston pumps can be made to vary their displacement, or swept volume, by altering the angle of the swash plate against which the pistons operate. Delivering the pump's output flow to a suitable motor provides for a 'closed loop' system if all the motor's output flow is then fed directly back into the pump inlet. Leakage across the pump & motor elements is replenished by means of a boost pump integrated into the main pump assembly.
 

 

 

ADVANTAGES

SERVO CONTROLLED DISPLACEMENT

SD 90 pumps use a cradle swashplate design which is servo controlled so that precise variations in displacement can be produced with very low operating forces. All pumps are supplied complete with integral boost pumps & boost relief valves.

MULTIPLE CONTROL OPTIONS

SD 90 series pumps can be supplied with a variety of control options such as pressure limiting, torque limiting, horse power limiting or even a full automotive drive control.

MOUNTINGS FROM SAE B TO SAE D

Units are available with SAE mounting flanges appropriate to their displacement & power output together with a range of splined shafts to SAE or DIN standards.

AUXILIARY POWER TAKE OFF MOUNTING FLANGE

All pumps are available with an SAE A or B rear flange that can be used for mounting additional services pump.

Ordering

SD-90 30cc


SD-90 42cc

SD-90 55cc

SD-90 75cc

SD-90 100cc

SD-90 130cc

SD-90 180cc

SD-90 250cc

Description

Define flow, speed, pressure, mount, rotation & control.

Define flow, speed, pressure, mount, rotation & control.

Define flow, speed, pressure, mount, rotation & control.

Define flow, speed, pressure, mount, rotation & control.

Define flow, speed, pressure, mount, rotation & control.

Define flow, speed, pressure, mount, rotation & control.

Define flow, speed, pressure, mount, rotation & control.

Define flow, speed, pressure, mount, rotation & control.

Temperature

Oil temperature should be between +30ºC & +60ºC during normal operation. Oil life is greatly reduced if temperature exceeds 60ºC. As a general rule, oil life is halved for each 8ºC temperature exceeds 60ºC.

Filtering

It is necessary to keep the level of contamination within a hydraulic system at an acceptable level to ensure trouble free operation. Filtration should always be specified at a level that protects the most sensitive item or component in the system.

 

 

View our latest company news here

Hydraulic Equipment Supermarkets have been awarded the distributorship in England & Wales for the new Magnom Pumpmate. Click here to download pdf file
Click here to request your free 'New' Outline Brochure.

Manufacturers

Sauer Danfoss
Parker Hydraulics
Sterling Hydraulics
Duplomatic
Filpro
Hallite Seals
HSP
Hy-Pro
Rastelli Raccordi
Tecreel
Wika
Webtec