Polyurethane Process Industries, LLC

Mix Head Repair

Where the customer comes first

Optimize production and save money with
PPI high quality, low cost mix head repairs.

We can help you get the most out of your process by giving new life to your old mix heads. Repairing or rebuilding a used polyurethane foam mix head can cost far less than buying a new one. It also offers the opportunity to upgrade to higher quality components or to newer technology that will satisfy changing production requirements.

We repair many major mixhead brands, including Admiral, Cannon, Gusmer, Hi-Tech, Krauss-Maffei, Linden, MHR and OMS.

Mix head repair services include:

  • Seal replacements and upgrades
  • Orifice, needle, nozzle or injector replacement and upgrades
  • Carbide-tipped needle repair
  • Piston (rod or plunger) replacements
  • Spacer (isolation chamber) design and installation
  • Component replacements and upgrades
  • New technology design and installation
  • Complete rebuilds with improved or standard components

Signs That a Mix Head Needs Repair

A mix head kept too long in service without inspection and repair can cause foaming within lines and components and costly downtime.

Many signs of mix head failure are unmistakable. Cross contamination of chemical and hydraulic lines. Oil and chemical leaks from nozzles. Sticking or broken pistons.

Other signs are less obvious. Failing or incorrectly applied mix head components can cause other process problems, such as inconsistent operating pressures, chemical waste and high scrap rates. Our process experts can help you determine whether a mix head is causing your production problems.

The Mix Head Repair Process

Once we receive your used mix head, our trained technicians disassemble, clean and assess its condition. If you have requested component or technology upgrades, our polyurethane process experts will work directly with you to determine the most cost-effective way to attain the mix head performance you need.

After this analysis is complete, we will fax or e-mail a written mix head repair quote to you, along with an estimate of the time it will take to complete the repairs. Work begins as soon as we receive your purchase order.

Our standard mix head repair service includes:

  • Complete disassembly and cleaning of the mix head
  • Inspection of all potential wear points and parts
  • Replacement or repair of worn or damaged parts
  • Reassembly of the mix head with new seals sized to match any new or repaired components
  • Complete hydraulic testing of each mix head to ensure seal and piston performance.

Used Mixhead Repair Warranty

We’re so confident in the quality of our repair services, we offer the best used mix head repair warranty in the industry.

Polyurethane Process Industries warrants a repaired mix head to be free from defects in workmanship and new materials used in the repair for 50,000 shots or six months from the date of shipment, whichever comes first. The warranty is limited to completed repairs and excludes normal maintenance items, not limited to, but including orifices and needles.

Image: mixing head disassembled for repair
Warranty: 50,000 shots or 6 months
Click here for details

Related Links:

» See Examples of Our Mix Head Repairs
Before-After Animation - Rebuilt Cannon, Krauss-Maffei and Admiral mix heads
» Quality, Low Cost Mix Head Parts

We Repair Carbide-Tipped Needles

Don't throw away your old carbide-tipped needles. For less than half the cost of a new needle, we can put your old needle in like-new condition by replacing the carbide tip and seals. We also replace carbide orifices.

Rental Mix Heads Available

Do you need a mix head as a temporary replacement for one that is in for repair? We rent mix heads by the week. Contact us for rental terms and pricing.

To Request a

Mix Head Repair Quote:


Download and fill in the Mix Head Inspection Request Form below.
Click or right-click the format you prefer. Then save the form to your computer.
MS Word Form PDF Form

Requires Microsoft Word 97 or higher Requires Adobe Acrobat Reader 6
.or higher


Ship the mix head and a copy of the completed Mix Head Inspection Request Form to:
Polyurethane Process Industries, LLC
1628 Roseytown Road, Suite 7
Greensburg, PA 15601
ATTN: Mark Clark
Within 7 to 10 days of receiving your mix head, we will fax or e-mail a quote for the necessary repairs.