Introduction
The OH-70A elevator buffer absorbs impact energy during fall or top-hitting accidents, slowing the car smoothly to protect passengers and reduce damage to elevator equipment.
Parameters and Specifications
|
Parameters |
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 |
130*150 |
130*170 |
|
Installation size a*b*D |
100*120*φ14 |
100*135*φ14 |
Features
Passenger Comfort & Smooth Ride
Provides gradual, low‑G deceleration that enhances comfort and minimizes jerky stops.
Versatile for All Speeds & Loads
Suitable for a broad range of elevator speeds and car capacities, including high-speed and heavy-duty systems.
Durable & Space-Saving Design
Compact construction fits limited pit space while ensuring long-term reliability.
Safety & Standard Compliance
Meets international elevator safety standards such as EN81 and GB7588.
Customization Options
Speed Rating Selection – Tailored buffer units for different rated speeds (e.g., low, medium, high).
Mass/Load Adaptation – Configurable to match specific elevator car weights and operational characteristics.
Series & Model Variants – Multiple series available (standard, telescopic, compact, heavy‑duty) to suit installation needs.
Installation Configuration – Custom stroke lengths, mounting dimensions, and return spring or gas spring options.
Hydraulic Performance Tuning – Variations in oil volume and valve/orifice settings to optimize damping characteristics.
