Latest posts

• 

  Replacement Part for Nordson® Pump Service Kit 105450

  Posted in: Dichtungen für Heißschmelzsysteme, Nordson Dichtungssatz

  668 Views

  In hot melt adhesive systems, the piston pump is the core of the melter. Once the pump seal wears out, output becomes unstable, leakage increases and unplanned downtime becomes more frequent. The OEM Nordson® pump service kit 105450 is widely referenced as a “Pump A seal kit / pump seal kit” for hot melt piston pumps. XHH Seals manufactures a compatible replacement kit, cross-referenced to 105450, to help maintenance teams rebuild their pumps in a cost-effective way. Note: 105450 is an OEM...

  Read more
• 

  PolyPak vs U-Cup Seal: Which One Is Better for Hydraulic Applications?

  Posted in: Hydraulikzylinder-Dichtungen

  133 Views

  Quick Answer If you are evaluating rod or piston seals for a hydraulic cylinder, the decision depends on your system's pressure dynamics and reliability requirements:For superior low-pressure sealing & vacuum conditions: Choose PolyPak seals. For high-stability under pressure fluctuations & shock loads: Choose PolyPak seals. For cost-sensitive, simple pneumatic or steady low-pressure systems: Choose U-cup seals.Engineering Consensus: In the majority of heavy-duty hydraulic...

  Read more
• 

  PolyPak Seal: Complete Guide to Structure, Materials and Selection

  Posted in: Hydraulikzylinder-Dichtungen

  131 Views

  What Is a PolyPak Seal A PolyPak seal is a composite hydraulic seal consisting of:A polyurethane (PU) sealing lip An elastomer O-ring energizer (NBR or FKM)It is widely used in hydraulic cylinders for both rod sealing and piston sealing applications. In engineering terms, it is also called:O-ring energized lip seal Composite hydraulic sealPolyPak Seal Structure & Working Principle Structure A typical PolyPak seal includes:Outer sealing element: PU lip Inner energizer: O-ring...

  Read more
• 

  GRACO MD2 Rebuild Kit Replacement (255218, 255219, 255220): OEM Cross Reference & Cost-Effective Alternatives

  Posted in: Dosier- und Abgabesysteme,

  29 Views

  Are you still sourcing original GRACO MD2 rebuild kits dealing with high costs and unpredictable lead times? For many maintenance teams and procurement managers, OEM kits such as the 255218, 255219, and 255220 present significant operational challenges:High Procurement Cost: Inflated OEM pricing that drains maintenance budgets. Limited Availability: Supply chain delays causing unacceptable production downtime. No Flexibility: Fixed material options that may not be optimized for your...

  Read more