Hansen Uniminer
Hansen Uniminer

Hansen P4 UniMiner

Hansen Industrial Gearboxes - P4 Alignment-Free Drive

The P4 UniMiner gear units are compact and optimized for mining and other applications involving bulk-material handling.

  • Drop-In replacement for most alignment-free drives
  • Split-housing design
  • Compact to fit tight spaces
  • Variety of accessories to meet your needs
Sizes

5 Sizes C - G in M series 2 Sizes G - H in Z series

Power Mechanical power up to 2330 HP (1738 kW)
Torque Torque up to 889,000 lb-in (100,445 Nm)
Ratios Ratios from 8:1 to 71:1
Accessory Options Motor lantern and scoop, motor base, backstop, swing base, flexible or hydro-dynamic couplings, belt-drive arrangements
Low Speed Shaft Solid (standard) Rigid-Rigid, Keyed Hollow, Shrink Disc Hollow
Bearings Tapered, cylindrical or spherical roller types
Housing

Grey cast iron (standard) or ductile iron (optional) machined on CNC machining centers

Tilt angles of +/- 3 degrees without forced lubrication

Key Facts

7Sizes
Up to 889,000 lb-in (100,445 Nm) and 7.5in. (190mm) Shaft Size
DropIN
Drop-in for Model R, as well as sizes 405, 425, and 2090.
71:1Ratio
From 8:1 to 71:1, custom ratios can meet your needs.

Housing

Universal, flippable, alignment-free housing design with pilot for lantern housing along with horizontal-split housing for easy maintenance

Easy Maintenance

Accessible covers for service on-the-spot inspection and maintenance, as well as optimized-bearing selections for longer service life

Quiet

Precision carburized and ground gearing delivers maximum capacity, minimal loss and quiet operation. Low-noise geometry in high-speed gear sets

Oil Guard™

Dynamic drain-back, maintains positive lubrication of high-speed shaft

Durable

Standard epoxy paint withstands harsh mining environments. Rugged steel-cased, filtered breathers are suitable for dusty environments

Motor

Wide variety of motor-installation accessories include: lantern housings, scoop brackets, common bases, and belt-drive arrangements

Seals

Shaft sealing incorporates dual grease-purgeable seals (Split-seal retainers available as an option)

Tilt

Standard UniMiner built for 3 degrees of tilt in all directions

Mounting

Choose from a variety of mounting options to meet your needs. Solid Shaft, Keyed-Hollow Bore, or Shrink Disc options are available.

Filters

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FAQ

Do you have questions about the Hansen P4 UniMiner Gear Unit? Below are some of our most commonly asked questions, or you can view our Support area under Knowledge for more frequently asked questions and answers.

Hansen P4 units use one of the following systems:

  • Splash Lubrication (standard with horizontal shaft gear units for speeds between 750 and 1800RPM at the high speed shaft.  Gears and output shaft bearings are lubricated by immersion in the oil bath.  Oil splash from gears fill the oil pockets in the housing, assuring gravity circulation lubrication of the bearings via channels in the housing and covers.)
  • Force Feed Lubrication (all rotating elements above oil bath level are lubricated by a gear pump forcing the oil through pressure lines.  Forced feed lubrication is available as circulation lubrication or pressure lubrication.

Hansen P4 units use one of the following systems:

  • Splash Lubrication (standard with horizontal shaft gear units for speeds between 750 and 1800RPM at the high speed shaft.  Gears and output shaft bearings are lubricated by immersion in the oil bath.  Oil splash from gears fill the oil pockets in the housing, assuring gravity circulation lubrication of the bearings via channels in the housing and covers.)
  • Force Feed Lubrication (all rotating elements above oil bath level are lubricated by a gear pump forcing the oil through pressure lines.  Forced feed lubrication is available as circulation lubrication or pressure lubrication.

Mineral oils containing EP additives, which increase oil film load capacity should be used.  Refer to the P4 service manual for recommended oil types. 

The first oil change should be carried out preferably after 100 hours and not more than 800 hours of operation.  The removed oil may be used again after filtering.  Filter the oil volume at least 10 times using a 10mm filter or smaller.  Subsequently the oil should be renewed after 4000 to 8000 hours or maximum of 18 months of operation depending on working conditions.  Please refer to service manual for detailed oil change instructions.

Emergency After-Hours Support

757-485-3355

Sumitomo’s Product Support offers scheduled repair services as a one-stop-shop for all your related gearbox needs. For emergency repairs, we offer repair services 24 hours a day, 7 days a week.

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