APPLICATIONS · INJECTION MOLDING
Meet international safety standards with positive-break gate interlocks and IP66 oil-resistant limit switches built for high-tonnage hydraulic and electric presses.
THE DEMANDS
Positions near the mold clamp and hydraulic manifold face temperatures up to 70°C and airborne hydraulic oil mist. IP66/IP67 sealed housings with oil-resistant NBR gaskets prevent internal fluid ingress.
Operator guard doors require certified safety switches with forced-disconnect NC contacts (EN 60947-5-1). The mechanism mechanically separates contact points to interrupt the mold closing circuit when the gate opens.
Continuous three-shift operations require high operational durability. Internal dual-spring contact structures maintain consistent travel response and contact resistance over 500,000 electrical cycles.
SWITCH POSITIONS
The safety gate mechanically disconnects the circuit before mold closing. Direct opening mechanisms guarantee positive circuit cut-off whenever the operator slides the gate open.
T4NS Series
T4N-R Series
Before the car moves, the door interlock switch must confirm every landing door is closed and locked. This is a safety-rated function — the switch must provide positive-break operation so that even if contacts weld, the circuit opens. European and Asian elevator codes specify safety-rated switches for this position.
T4N Series
T4NR Series
Die-cast oil-resistant housings (IP66) protect hydraulic clamp and ejector stops from hydraulic mist, while economical resin switches handle lighter outer covers.
T LS Series
WL Series
RECOMMENDED PRODUCTS
These are general suggestions based on technical specifications. Contact our engineering team for a recommendation specific to your machine.
OPERATOR SAFETY GATES
Key-operated safety door switch featuring certified forced-disconnect NC contacts (EN 60947-5-1) and a four-direction adjustable head to secure front and rear operator gates.
MOLD OPEN / CLOSE & EJECTOR
Compact vertical housing with IP65 sealing and open terminal access, engineered for high-cycle mold stroke confirmation.
ECONOMY MACHINE ENCLOSURES
Glass-reinforced plastic housing with an IP65 rating and ±95° swing arm, providing cost-effective position sensing on external covers and hopper slides.
HIGH-CYCLE HYDRAULIC & OIL ZONES
Heavy-duty die-cast aluminum housing with IP66 oil and mist resistance. Double-circuit mechanism withstands high ambient heat and continuous hydraulic vibration.
WHAT MATTERS
Injection molding export standards require positive-break safety interlocks on operator gates. The T4NS series features certified forced-disconnect NC contacts (EN 60947-5-1) to reliably cut mold clamping circuits when gates slide open.
Positions near the clamp cylinder and manifold face continuous hydraulic oil spray and radiant heat. Heavy-duty die-cast housings (IP66/IP67) with oil-resistant NBR seals prevent contact fouling and false tripping.
High-speed cycle times demand switch mechanisms that maintain repeatable contact actuation through millions of shifts without spring fatigue or position drift on core-pull and ejector stops.
Clamping force, gate layout, and the conditions around the mold are enough to map a switch for every position.
MAINTENANCE
Molding machines get serviced on a fixed plan. The switch checks below take the same visit.
NEXT STEP
Tell us the machine: tonnage, gate layout, and the conditions around the mold. Our engineering team will map the switches.
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Download catalogues with ratings and drawings, and ask 3D files for the machine design.
