| After-sales Service: | 24 Hours Service Online |
|---|---|
| Warranty: | 10 Years Warranty |
| Material: | Aluminum Alloy |
| Type: | Embedded |
| Installation Type: | Doorframe |
| Function: | Stop, Adjustable, Buffered |
| Samples: |
|---|
| Customization: |
|---|
Suppliers with verified business licenses
Audited Supplier 
| Technical Parameters |
| Model: | HD-4000 |
| Applicable Standard: | UL&ANSI GRADE1 |
| Max Door Width: | 600-1400mm |
| Max Door Weight: | 20-150kg( EN1-5) |
| Hole size: | 19mm |
| Function Option | Back check |
| Latching Speed Adjustment: | 0°-20° |
| Closing Speed Adjustment: | 20°-90° |
| Application Temperature: | -40° to 60° |
| Dimension:Length*Width*Height | 246mm*44mm*70mm |
| Color: | Many color for optional |
| Material | Aluminium |
| Service Life: | Over 2,million cycles |
| Warranty: | 5 years |
| Dimension of Appearance |
| Product Features |
A. Traditional style medium & heavy duty doser for commercial doors;
B. ANSI/BHMA A156.4 Grade 1 Certified;
C. UL / cUL listed for use on fire rated doors;
D. UL10C listed for positive pressure fire test;
E. Adjustabie spring force from EN1-6;
F. Standard, separate and independent, latch, sweep and backcheck intensity valves;
G. Delayed action;
| Special Function |
| Product Details |
| Why choose us |
1. The world's biggest floor spring manufacturer in China.Daily productionover 15,000PCS
2. The factory has three production base located in ZHEJIANG ,ANHUI,JIANGSU three province. The area cover 72,000 square meters.
3. Over 33 years producing experience. Ripe production process.
4. Impeccable testing system covered from raw material,components,semi-finished products.
5. HAIDA has own national test laboratory (Intertek Satellite Lab)to make sure the growth of our company.
| Workshop & Lab |
| Certification |
| More Products |
| FAQ |
Q: What is the minimum quantity ?
No MOQ,We can sell even 1PCS
Q: How long is the delivery time?
10 to 30days,depend on your order quantity
Q: Can you send samples before place the order
Yes,sure.we can provide samples for quality checking.
Q: Do you provide OEM service?
Yes,we do
Q: How about the payment terms ?
T/T,D/P,L/C,Paypal,Western union and cash all acceptable.
Q: How about your quality warranty?
When the products got problem during our warranty period,we will provide
| Contact us |
Thanks.If you want to know more,please send your inquiry to us.
Suppliers with verified business licenses
Audited Supplier 
){kind=link}
){kind=link}