Skip Hoist Door Interlock Mechanism
Electromechanical interlock assembly preventing skip hoist shaft door opening unless skip is positioned correctly, enhancing safety. Integral safety part for skip hoists of 8428, per HTS 8531.31.0020—no, 8431.31.0020.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If primarily electrical switches
Electrical safety switches classify in Chapter 85.
If interlocks for passenger elevators
Safety parts for other elevator types have separate provisions.
If basic mechanical locks
General locks and fittings outside machinery context in 8301.
Not sure which classification is right?
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Import Tips & Compliance
• Supply electrical schematics and safety compliance docs (e.g
• OSHA-equivalent)
• Declare as mechanical interlock, not electrical switch, for correct chapter
Related Products under HTS 8431.31.00.20
Skip Hoist Cable Sheave Pulley
Cast iron pulley with grooved sheave for guiding hoist ropes in skip hoist mechanisms, ensuring smooth vertical movement of material skips. Tailored for high-load mining applications, it qualifies under HTS 8431.31.0020 as a principal part of skip hoists.
Skip Hoist Skip Bucket Hinge Pin
High-tensile alloy steel pin for hinging the dump mechanism on skip hoist buckets, enabling controlled unloading of materials. Precision-machined for skip hoist pivot points, HTS 8431.31.0020.
Skip Hoist Overwind Protection Sensor Mount
Machined mount for limit switches detecting skip overtravel in hoist systems, preventing accidents. Dedicated to skip hoist safety, HTS 8431.31.0020.
Skip Hoist Deflector Plate
Wear-resistant deflector plate directing material into skip bucket during loading. Specific for skip hoists, HTS 8431.31.0020.
Skip Hoist Tension Weight Roller
Roller assembly maintaining constant rope tension via counterweight in skip hoists. HTS 8431.31.0020 part.
Skip Hoist Shaft Guide Shoe
Sliding guide shoes reducing lateral movement of skips in hoist shafts. Mining-specific, HTS 8431.31.0020.