HMF Series
72Pages

Precision Machinery Company Three-Speed Radial Piston Staffa Motor

1-3. ain Port Connection Options M 2-2. Volumetric Efficiency Data 2-3. Displacement Change Sequence 2-4. Shaft Power Calculations 2-6. Shaft Stress Limits 2-7. Bearing Life Notes 2-8. Circuit and Application Notes 2-9. Motor Operation at Low Temperatures 2-10. Crankcase Drain Connections 3-5. peed Sensing Options S

HMF Series Three-Speed Staffa Motor General Descriptions The HMF series three-speed models have three pre-set displacements which can be chosen from a wide range to suit specific application requirements. The displacement are hydraulically selected using remotely mounted 3 displacement modes Freewheel options available High torque at low speed directional control valves. Motor displacement can be changed with ease while the motor is running. The range of three speed motors extends from the HMF100 in 1,524 cc/rev to the HMF325 in 5,326 cc/rev. Smooth running Wide range of displacements to...

Ordering Code 1-1 Model Coding F11/HMF270 / S3 V/280/140/00/FM4/X/Tj/10/P***** Fluid Type (refer to page 6 for performance data) Blank Phosphate ester (HFD fluid) Water based fluids (HFA, HFB & HFC) Alternative fluids contact Kawasaki Special features (see options on page 5) Non-catalogued features, (***) = number assigned by Kawasaki as required. Heavy duty Design Series Number Motor Frame Size Current series for HMF motors Tacho Encoder Drive Blank Shaft Orientation Blank Combines Tj with the T401 instrument to give a 4 to 20 mA output proportional to speed. Directional signal and speed...

1-1 Model Coding Special Features Suffix Shaft Seal Enhancements Valve Enhancements High pressure shaft seal Improved cavitation resistance Improved shaft seal life High pressure shaft seal & improved shaft seal life Thermal shock resistance Improved caviation resistance & anti-clockwise Improved cavitation resistance & thermal shock resistance Anti-clockwise & thermal shock resistance Improved cavitation resistance & anti-clockwise & thermal shock resistance Anti-pooling bolt heads Marine-specification primer paint Anti-pooling bolt heads & Marine-specification primer paint Installation...

1-2 Shaft Options Product type HMF100 P = Parallel keyed 60mm diameter shaft S = Splined shaft 14 teeth BS3550 Z = Splined shaft DIN5480 (W70x3x22x7h) T = Long taper keyed shaft - 95.2 key slot HMF200 P1 = Parallel keyed 85mm diameter shaft S3 = Splined shaft 20 teeth BS3550 S4 = Splined shaft 16 teeth BS3550 Z3 = Splined shaft DIN5480 (W85x3x27x7h) T = Long taper keyed shaft - 133.4 key slot HMHDF200 P2 = Parallel keyed 100mm diameter shaft S5 = Splined shaft 23 teeth BS3550 Z5 = Splined shaft DIN5480 (W100x4x24x7h) HMF270 P1 = Parallel keyed 85mm diameter shaft S3 = Splined shaft 20 teeth...

1-3 Main Port Connections Product type HMF100 SM3 = 1¼” symmetrical ports with through-holes for manifold connection F3 = 1¼” SAE 4-bolt flange FM3 = 1 ¼” SAE 4-bolt flange F4 = SAE 1½” 4-bolt UNC flanges FM4 = SAE 1½” 4-bolt metric flanges HMF200 SM3 = 1¼” symmetrical ports with through-holes for manifold connection F3 = 1¼” SAE code 61 4-bolt flange FM3 = 1¼” SAE code 61 4-bolt flange F4 = SAE 1½” 4-bolt UNC flanges FM4 = SAE 1½” 4-bolt metric flanges

1-4 Special Features The HMF motor can be ordered with special features which can improve the motor’s performance for different applications. Further details about each feature are given on pages 8-21. High Pressure Shaft Seal Description: > 10 bar rated > Recommended for cold climates > Rugged aluminium construction Technical Information Where crankcase pressure will be higher than 3.5 bar, the high pressure shaft seal should be selected. Case pressure Non-operating temperature limits Minimum operating temperature Maximum operating temperature Minimum viscosity Maximum viscosity Please...

1-4 Special Features Improved Shaft Seal Life Description: > Stainless steel sleeve prevents corrosion > Improved wear resistance > Recommended for corrosive environments Technical Information A well-established method of increasing rotary seal life in corrosive environments is to fit a thin-walled, stainless steel sleeve to the rotating shaft to provide a corrosion-resistant, wear-resistant counterface surface for the seal to run against. All HMF motors can be fitted with such sleeves upon request. Sleeve material Sleeve surface finish Please contact Kawasaki to order this feature.

1-4 Special Features Improved Cavitation Resistance Description: > Recommended for overunning applications > Protects against seal damage for short periods of operation in vacuum inlet conditions. Cavitation can occur due to many different factors. Although it is not possible to make the HMF motor resistant to cavitation, certain features can be added to improve the motor’s resistance to short periods of lost port pressure. In applications where the HMF motor can be driven (like a pump) a risk arises that insufficient fluid will be provided to maintain a positive pressure at both main ports...

1-4 Special Features Anti-Pooling Bolt Heads Description: > Removes potential for water pooling > Improved corrosion resistance > Recommended for marine environments Technical Information In many marine applications, water pooling in socket head cap screw heads presents a significant corrosion risk. Corroded cap screws can make service and repair of affected units impossible. To significantly reduce the risk of water damage through pooling, HMF motors can be supplied with silicone filler in all the bolt heads. Please contact Kawasaki to order this feature.

1-4 Special Features Increased Starting Torque Description: > Optimised for high break-out torque > Recommended for low speed operation > Improved service life for low speed applications Technical Information If an application demands the drive motor be run at speeds of less than 10 rpm for most of the duty cycle, or involves frequent start/stop or forward/reverse operation, the Staffa HMF motor range has it covered. All figures given in Section 2-1 Performance Data are still valid when selecting this feature. By optimising the HMF motor’s design for low speeds, it is possible to increase...