The Elevator Pit Tensioning Device is a mechanical safety component installed in the elevator pit to maintain stable and continuous tension on the governor rope system.
It ensures that the overspeed governor can respond accurately under all operating conditions by preventing slack, displacement, or uneven tension in the rope system. This directly supports the reliable triggering of safety clamps during emergency overspeed events.
Technical Specifications
|
Item |
Specification |
|
Product Model |
A01 |
|
Rope Pulley Pitch Diameter |
Φ150 mm |
|
Wire Rope Diameter |
Φ6 mm |
|
Installation Method |
Ground installation (pit floor mounting) |
|
Applicable Shaft Height |
≤ 20 m |
|
Minimum Tension Force |
≥ 500 N |
|
Operating Structure |
Spring-loaded mechanical compensation system |
Working Principle
The device uses a spring-loaded mechanical tension compensation system to maintain constant pulling force on the governor rope.
When rope length changes due to:
Normal wear and stretching
Temperature variation
Long-term mechanical fatigue
the internal spring mechanism automatically compensates the displacement, ensuring consistent rope tension.
This guarantees:
Stable governor signal transmission
Correct safety clamp activation timing
Reduced risk of overspeed protection failure
Key Engineering Advantages
Fast Ground Installation
Direct pit-floor mounting reduces alignment complexity, shortens installation time, and lowers labor cost during both new installation and modernization projects.
Stable Mechanical Tension (≥500N)
Provides continuous and stable pulling force to ensure reliable governor rope performance under all working conditions.
Automatic Compensation System
Mechanical spring design automatically adjusts for rope elongation without manual recalibration.
Application Scope
The Elevator Pit Tensioning Device is widely used in:
Quality Assurance & Compliance
To meet international elevator safety expectations, production follows strict quality control standards:
ISO 9001 quality management system
CE certification available for export models (optional by project requirement)
100% inspection before shipment
Material and batch traceability for each production lot
Functional load testing before packaging
These procedures ensure consistent reliability in safety-critical elevator applications.
Customization Capability
We provide engineering customization based on project requirements:
Adjustable rope pulley diameter for different rope standards
Customized tension force calibration for specific elevator designs
Corrosion-resistant material upgrades for humid or coastal environments
Optional electrical safety switch integration for monitoring systems
OEM branding and packaging for distributors
Packaging & Delivery
Export-grade waterproof protection packaging
Reinforced wooden crate for international shipping safety
Standard models: 3–7 working days (in-stock items)
Customized models: 15–30 working days production cycle
Shipping methods: sea freight / air freight / express (DHL, FedEx, UPS)
Send Inquiry
For fast quotation, please provide:
Required model or technical drawing (if available)
Order quantity
Project application type
Destination port
We typically respond within 12 hours with technical confirmation and pricing.
FAQ
Q: What is the MOQ for this product?
A: Standard MOQ is 1–10 units depending on order type and customization requirements.
Q: What payment terms do you support?
A: We accept T/T (30% deposit, 70% before shipment) and L/C for large volume orders.
Q: What trade terms are available?
A: EXW, FOB, and CIF are available depending on buyer preference.
Q: What is the delivery time?
A: Stock orders ship within 3–7 days; customized orders require 15–30 days.
Q: Can I request samples before bulk order?
A: Yes, sample orders are available for quality verification before mass procurement.
Q: What certifications do you provide?
A: ISO 9001 is standard; CE certification can be provided for export requirements.
Q: How do you ensure product quality consistency?
A: Each unit undergoes full mechanical testing, including tension load verification before
shipment.
Q: Is OEM branding available?
A: Yes, we support OEM branding, packaging customization, and private labeling for distributors.
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