About HAIMER
HAIMER Precision Tool Clamping Solutions
HAIMER is a family-owned German manufacturer founded in 1977 by Franz and Claudia Haimer in Bavaria, near Augsburg. The company specializes in high-precision tool holding and clamping technology for metal cutting, serving automotive, aerospace, energy, rail transport, and general mechanical engineering industries with roughly 800 employees and 100% production in Germany.
The product range includes tool holders in all common interfaces—DIN ISO 7388-1 steep taper (SK30/SK40/SK50) rated to 12,000 RPM, DIN 69893 HSK interfaces with highly accurate centering, and ISO 26623 PSC spindle couplings for multi-task turn-mill centers. HAIMER also manufactures grinding wheel adapters in HSK-63, HSK-A100, and PSC 63 spindle interfaces, precision balancing machines, and the patented Safe-Lock pull-out protection system introduced in 2011.
HAIMER pioneered the 3D-Sensor edge finder in 1988, launched its first Tool Dynamic balancing machine in 1996, and released Power Clamp shrink fit technology in 1999—innovations that set the standard for precision tool holding across the metalworking industry. All machines use modern automation at the Igenhausen production facility, ensuring repeatability and runout accuracy to micron levels.
Beyond spindle interfaces, HAIMER provides cutting tools in solid carbide, 3D measuring devices, tool presetting equipment, and a complete shrink-fit technology portfolio. Industries relying on HAIMER range from CNC manufacturers to aerospace and defense contractors where tool stability and spindle accuracy directly impact part quality and production uptime.
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Frequently asked questions
What is the difference between DIN steep taper (SK) and HSK couplings for my spindle?
Steep taper (SK30/SK40/SK50) holders use a 45° taper angle and are rated up to 12,000 RPM with simple pull-stud clamping, making them cost-effective for older CNC spindles and general machine tools. HSK (Hirth Shrink Fit) interfaces use a radial 1:10 taper with precise centering lugs and barrel clamping, delivering superior runout accuracy (±0.003 mm repeat) at spindle speeds up to 50,000 RPM or higher, making them essential for high-speed machining centers and precision grinding.
How do I know which HAIMER tool holder works with my spindle?
Your spindle's taper designation (BT40, ISO 40, HSK63-A, PSC 63) is typically stamped on the spindle housing or spindle drive unit; cross-reference this against HAIMER's interface compatibility charts by taper class, then specify your tool shank size (cylindrical or Morse taper) and desired pull-stud/coupling method. HAIMER offers multiple variants per spindle type to accommodate different clamping styles and runout demands.
Does HAIMER offer tool holders for automated tool changer systems?
Yes—HAIMER's Power Clamp shrink-fit system and PSC (Positioned Spindle Coupling) interfaces are specifically designed for automated tool changers in multi-task and turn-mill centers, ensuring repeatable tool-to-spindle positioning with zero runout variation even across hundreds of tool changes per shift.
What is HAIMER's shrink-fit technology and when should I use it instead of pull-stud clamping?
Shrink-fit (Power Clamp) technology heats the tool holder to expand it, slides the tool shank in, and then cools to create an ultra-precise, vibration-free grip with micron-level accuracy; it's ideal for high-speed spindles (>10,000 RPM), grinding operations, and EDM work where runout must be under 0.002 mm and pull-stud bounce could cause chatter or part scrap.
Can I mix HAIMER tool holders with other brand spindles?
HAIMER holders are ISO/DIN standard-compliant, so they physically fit any spindle of the same taper type, but spindle runout accuracy depends on both the holder's precision and the spindle's internal bore concentricity; mixing a high-precision HAIMER holder with a worn spindle will not improve runout, so verify your spindle's internal bore runout before upgrading tool holders alone.