Core pulling unit
Micrometer-precise slide movements for purest precision - low maintenance, energy-efficient, and 100% cleanroom compatibility.
The servo-electric core pulling unit SLY combines slide guidance, actuation, and assembly in one compact unit. Developed for highly precise slide tools and lift & strip molds in medical technology, it enables µm-accurate positioning with reduced tool dimensions and minimal maintenance effort.
- Cleanroom compatible - Oil-free operation for contamination-free processes
- Compact - enables space-saving tool dimensions.
- Smart - Programmable travel profiles
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Advantages at a glance
Up to 45% smaller tool dimensions possible.
Electrification without complete redesign
Constant surface quality without wear-related scratches
No contamination from hydraulic oil or leaks.
Lower material and processing costs
Fast amortization through reduced operating costs
Innovations in detail
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Significantly more compact form sizes by relocating the slide guides outside the mold frame.
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Unrivaled precision in assembly and positioning in all three axis directions.
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Servo-electric drive train with special ball screw spindle for clean and efficient operation
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Pre-stressed fine centering for µm-accurate positioning of the slide bodies.
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Maximum load capacity, stiffness, and accuracy thanks to low-maintenance linear guides with cage guidance.
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Areas of application
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In medical technology, surface quality and purity determine the usability of components. For transparent components, even a minimal scratch renders the part unusable - impurities must remain immediately visible to the user. The SLY core unit eliminates this risk with its low-maintenance linear guide with cage guidance. Even with heavy core shapes, the micrometer-precise guidance remains wear-free for years. The 100% oil-free operation meets clean room requirements up to ISO 7/GMP-C without additional seals or filters.
Moved by our servo technology
FAQ - Frequently Asked Questions
A core pulling unit moves mold cores or sliders in an injection molding tool to release undercuts and complex part geometries. It generates the force needed to detach the solidified plastic from the core and positions the core precisely for the next cycle. Core pulling units are available in hydraulic, pneumatic, and servo-electric designs.