Power Adjustable Heavy Duty Floor Spring

Anhui Haida Door Control Equipment Co., Ltd. is one of the most experienced manufacturers and suppliers of power adjustable heavy duty floor spring in China. With abundant experience, we warmly welcome you to wholesale bulk high quality products in stock here and get free sample from our factory. Customized orders are welcome.

FEATURES

● One mechanism is available for single and double-action doors where surface closers cannot be installed.

● The high-grade cast iron mechanism is housed in a galvanized steel bulk box that is zinc protected and painted for corrosion resistance.

● The high-grade cast iron mechanism body is housed in a galvanized steel bulk box which is zinc protected and painted to resist corrosion.

● Internal mechanism parts are made of heat-treated high alloy steel and ball bearings for optimum efficiency.

● Built-in pressure relief valve protects the door closer from rough use. The door closer mechanism is fully immersed in hydraulic oil.

SPECIFICATIONS

As an integrated supplier of industry and trade, we have professionals in all aspects to make arrangements to make production more controllable and more efficient.

HEINDA's annual production capacity exceeds 4,000,000 sets of floor springs, 1,000,000 sets of door closer, and 120,000 sets of automatic door systems. Haida continues to improve the company’s infrastructure. It has more than 110 CNC machine tools and has introduced multiple production lines from abroad. The standardized process settings make each link organized, with strong manufacturing capabilities and high manufacturing efficiency.

We will discuss the choice of shipping method and shipping port based on the actual situation so that the products can reach customers on time.

Why Choose Us

1. The world's biggest floor spring manufacturer in China.Daily production over 15,000PCS

2. The factory has three production bases located in ZHEJIANG, ANHUI, JIANGSU three provinces. The area covers 72,000 square meters.

3. Over 33 years of producing experience. Ripe production process.

4. Impeccable testing system covered from raw material, components,semi-finished products.

5. HEINDA has its own national test laboratory (Intertek Satellite Lab)to make sure the growth of our company.

FAQ

Q: What is the minimum quantity?

No MOQ,We can sell even 1PCS

Q: How long is the delivery time?

10 to 30 days, depending on your order quantity

Q: Can you send samples before placing 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