Built tough and easy to operate, the Slinger spincaster is a contractor’s dream machine for manhole rehabilitation, repair and restoration. Safe and simply designed, it applies cement linings to manholes with limited entry, reducing risk to personnel. Its aluminum housing allows for easy cleanup and utilizes sealed bearings for long life. This is a go-to product for rehabilitating wastewater structures like manholes and septic tank rehabilitation.


Power 1 hp DC drive
Speed Control Dial-a-Speed electronic speed control
Max Output 5 gpm
Max Inlet Pressure 30 psi
Directional Control Forward only
Head Overall Dimensions 6.5 in diameter x 24 in body length, 66 lbs
Tripod Overall Dimensions 16 in diameter x 65 in length, 49 lbs
Shipping Weight 295 lbs, controls and cables 61 lbs
Power Requirement 110V 15A
Blade 3 heat-treated angled blades for upward application
Inlet Size 1-1/4 FPT with 1-1/4 male camlock standard
Winch 12 VDC single speed winch, not for use with personnel or material loads
Max Aggregate Size* 1/8 in

* This is maximum aggregate size recommended for pump. Mix viscosity and pumping speed will affect how the material is applied.
Copyright 2020 HyFlex Corporation. All information contained within this document is based on the latest information available at the time of publication.
HyFlex reserves the right to make changes at any time without notice.


  • 30 degree upward application to apply mortar to the underneath surfaces
  • Works with fiber reinforced, calcium aluminate and cement-based materials
  • 12 VDC winch allows for safe operation and cleanup
  • Reaches depths up to 35 feet
  • Variable speed motor for the most precise control
  • 0-2500 rpm speeds
  • Sealed bearings with grease fittings and bleed-off screw allow cleanout of the seal cavity with disassembly
  • 110 volt powered — requires only 15 amp service and easily runs off of a 5k watt generator
  • Aluminum housing for easy cleanup
  • Nylon mortar cavity for reduced wear of parts and to prevent material from sticking inside the cavity
  • Replaceable blades are heat treated for long life
  • Modular design allows for the removal of the controls, winch and head for faster and easier transport, setup and teardown
  • Large inventory of parts! Orders placed by noon will be shipped out the same day
  • This is a great machine. We use it pretty much every day for manhole linings, which is a bit new for our company, but this machine has been very reliable. And HyFlex is always available to help. They’ve given us great support."

    Ken Novel, President, XL Contracting

  • We’ve been using the Slinger for the past four years. It’s performed beyond our expectations in both manholes and lift stations. We’re able to spray lift stations that are both 8 and 10 inches in diameter. It’s very easy to assure that the proper thickness is applied based on the variable speed of the unit. We’ve been using the Slinger primarily to apply pure fused calcium aluminate mortar. It has performed exceptionally well. As our business expands, we will definitely add an additional Slinger to our equipment fleet. We would not consider anything else."

    Larry Morris, Owner, Morris and Associates, Inc.


  • Manhole Rehabilitation
  • Manhole Repair and Restoration
  • Septic Tank Rehabilitation
  • RCP - Reinforced Concrete Pipe Restoration