During normal elevator operation, the car is controlled by the traction system. However, in rare failure scenarios such as traction loss, overspeed descent, or controller malfunction, the elevator may exceed its normal terminal limit speed.
In these conditions, Oil Buffers For Elevators installed in the elevator pit act as the final mechanical safety protection layer. They absorb kinetic energy through hydraulic damping and gradually decelerate the elevator car or counterweight to prevent severe impact.
This component is a mandatory terminal safety device in modern elevator engineering systems, especially for medium and high-rise buildings.
Technical Parameters
|
Parameter |
Unit |
OH-70A |
OH-70B |
|
Rated speed |
m/s |
≤1.0 |
≤1.0 |
|
Buffer mass range |
Kg |
800–3600 |
2000–5500 |
|
Compression stroke S |
mm |
85 |
85 |
|
Free height H |
mm |
234 |
260 |
|
HL-46 oil volume |
L |
0.25 |
0.37 |
|
Floor size A×B |
mm |
130×150 |
130×170 |
|
Installation size a×b×D |
mm |
100×120×φ14 |
100×135×φ14 |
Model Selection Guidance
OH-70A: Recommended for standard passenger elevator systems and medium-load applications
OH-70B: Designed for heavy-duty systems such as freight elevators and high-capacity buildings
Engineers can select directly based on rated load and pit installation constraints.
Manufacturing Capability & Quality Assurance
Production Process Control
CNC precision machining of cylinder body and piston assembly
Dimensional verification for all critical installation interfaces
Hydraulic sealing pressure test for 100% of units
Compression cycle durability simulation testing
Batch-level traceability system for production records
Testing Equipment (Factory-Level Capability)
Hydraulic pressure test bench for load simulation
Compression stroke calibration system
Precision measuring instruments for dimensional control
Leak detection inspection before packaging
Engineering Documentation & Support
To support elevator manufacturers and project contractors, we provide full engineering documentation:
Technical datasheet (PDF)
2D CAD drawings (DWG format)
3D models (STEP / IGES formats)
Load selection guide based on elevator system design
Installation reference guidance
All documents are available upon request for engineering integration.
Application Scope
Oil Buffers For Elevators are widely used in:
OEM & Wholesale Supply Capability
We support global B2B procurement and long-term cooperation:
OEM / ODM customization (stroke, load, dimensions)
Flexible MOQ starting from 10–20 units depending on model
Stable mass production capacity for distributor supply chains
Engineering support for project-based selection
Packaging & Delivery System
• Export-grade reinforced wooden crate packaging
• Anti-corrosion oil protection applied before shipment
Delivery Time:
• In-stock models: 3–7 working days
• Standard production: 10–25 days
• Custom engineering orders: confirmed after technical review
Certifications & Compliance Statement
Designed in compliance with EN81 elevator safety standard
Manufactured under GB7588 safety system framework
ISO 9001 quality management system implemented in production
Full batch inspection and traceability records available
Certification documents can be provided for project bidding, inspection, or customer audit requirements.
FAQ
Q: What is the MOQ for Oil Buffers For Elevators?
A: Standard MOQ is 10–20 units depending on model and customization requirements.
Q: What payment terms do you support?
A: We support T/T bank transfer, and long-term partners may negotiate flexible payment arrangements.
Q: What trade terms are available?
A: EXW, FOB, CIF, and CFR are supported depending on shipping requirements.
Q: What is your delivery time?
A: 3–7 days for stock models and 10–25 days for bulk production orders.
Q: How do you ensure product reliability?
A: Each unit is tested under hydraulic pressure, compression simulation, and dimensional inspection before shipment.
Q: Can you provide OEM or customized engineering versions?
A: Yes, we support full customization including load capacity, stroke length, and installation dimensions.
Q: Do you provide engineering support for selection?
A: Yes, our technical team can provide free model selection guidance based on elevator load and shaft design.
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