Concealed Flush Door Hinges For Front Doors

Anhui Haida Door Control Equipment Co., Ltd. is one of the most experienced manufacturers and suppliers of concealed flush door hinges for front doors 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

● Closing speed is adjustable in different occasions to secure safety entry of the old and disabled.

● Anti-pinch function: closing speed will obviously slow down at 25° even when external force or strong wind applied to the door.

● No oil Leakage: imported seal material, delicate structure, process control on quality.

● Anti-pinch function: hydraulic flow control.

● Load capacity: advanced heat treatment technology and quality for inner parts.

● Lifespan: 300,000 cycles, precision manufacturing technology, small but powerful torsional springs, durable hydraulic design.

SPECIFICATIONS

Model: HHC-80

Surface Treatment: sand silver/ sand black/ sand gold/ green bronze/ red bronze

Material: space aluminum

Cycles Test: 300000 cycles

Service Life: 5 years

Main Functions: mute buffer/ automatic door closing

Application Scope: all kinds of wooden doors, steel plastic doors, aluminum doors, etc

Slotting Method: blade slotting width 35mm, depth 3.5-4mm (bilateral slotted door gap 2mm, unilateral slotted door gap 4-5mm, non slotted door gap 7-8mm)

Haida Door Control Co., Ltd. is a group of companies specializing in the production of hydraulic hardware door control and intelligent induction door control series, integrating design and development, manufacturing, sales and service.

Haida door control products mainly include: floor springs, all kinds of external, hidden door closers, glass hardware, automatic induction doors, automatic flush door openers, access control systems and other types of hardware intelligent door control. High-tech R&D center stands in New World Tower, 18 Queen's Road Central, Hong Kong. The sales headquarter is located in the Shanghai district of Suzhou River, adjacent to the bustling Nanjing Road pedestrian street. At present, three production bases have been set up in Zhejiang, Jiangsu and Anhui respectively, totaling 196,000 square meters, with annual sales of 4 million units of floor springs, 1 million units of door closers, and 100,000 sets of automatic swing doors and sliding door units.

>>There are as many as 300 CNC machines, which can cope with various machining requirements such as turning, drilling, boring, grinding, gear processing and milling.

>>The company has 12 fully-automatic production lines are imported from overseas automatic ultrasonic cleaning line, automatic drying and painting line, etc.

>>The company is equipped with a 30M long mesh belt quenching furnace and 5 well carburizing furnaces, 3 EDMs, 3 wire cutting machines and a professional heat treatment production workshop.

>>Machining center equipment includes: 1 Taiwan-imported Haas machining center machine, 7 Taiwan-imported machining center machines, 7 Jieyongda and 4 Nanjing Syso machining center machines

>>Professional aluminum die-casting workshop, with 5 large centralized melting furnaces and supporting robots for operation and production

Q: Is it all right to make customer's own brand name?

A: Yes,we have OEM service.

Q: Are you a manufactuer or trading company?

A: We are professional manufacturer with 35 years experience.

Q: How can I get a sample to check your quality?

A: The sample is available. But normally client will be fin charged the express cost and sample fee. 

Q: Packaging & Shipping:  

A: Sample shipped by UPS,FedEX,DHL and others express, freight charged paid by your side. Big order goods can be shipped by sea. 

Q: What are your main products? 

A: HEINDA door control products mainly include: floor springs,door closers, glass hardware, automatic sliding doors, automatic swing door openers, access control systems and other types of hardware intelligent door control.

Q: Does your product have warranty service? How long is the warranty period?

A: The product warranty period depends on the product, generally ranging from 5-10 years.