Aluminum die casting hydraulic automatic door closer 25kg to 200kg

Short Description:

Model No.: LM-DL-001~LM-DL-012

Material: Aluminum Alloy

Type: Outside-mounted, Anchor Point Of 90° Or No Anchor Point Of 180°

Installation Type: Doorframe

Function: Buffered

Standard: European Standard

Remote Control: Without Remote Control

Door Width: 1000mm

Color: Silver, Silver

Product Name: Hydraulic Automatic Door Closer

Shape: Round Or Hydraulic

Max Door Weight: 25-45kg, 45-60kg, 60-80kg, 80-110kg,100-150kg, 150-200kg;

Maximum Door Width: 500-2000mm

Door Closer Weight: 1kg~5kg

Finish: Powder Coating

Application: Office Door, Fire Door And Others

Packing: 1 Pc/small Box, 10 Pcs/cart

Product Detail

Product Tags

Packaging: 10 pcs/carton, wooden pallet

Productivity: 20000 pcs/month

Brand: LEMA

Transportation: Ocean

Place of Origin: Zhejiang, China

Supply Ability: 5000

Certificate: CCC, ISO

Product Description

Aluminum die casting hydraulic automatic door closer


  • Product description

Operation principle for hydraulic automatic door closer:

Automatic door closing device, the working principle is when the door is opened, door body femoral artery connecting rod to act and make gear rolling drive rack piston move to the right. Spring was tightening on the right plunger in the process of hydraulic oil in the compression cavity of right. A one-way valve ball valve on the left side of the plunger is opened under the action of the oil pressure, and the hydraulic oil in the right cavity flows into the left cavity through a one-way valve. When after the completion of the opening process, because the spring in the open process by the austerity, the elastic potential energy of the savings were released, will push the piston to the left femoral artery and gear and door closers connecting rod rolling, to keep the door closed. In the spring to release process, because the door is the left chamber of the hydraulic oil by the compressed, the check valve is closed, hydraulic oil only through the gap between the shell and the plunger outflow, and through the hole in the plunger and two with save the spool flow back into the right chamber. Closed door varieties can be divided into: exterior and embedded in the top of the door closed, embedded door closed device, the bottom of the door behind closed doors (spring), vertical closed (built in vertical door closers) and other types of door closers.


Specification introduction for hydraulic door closer:


  • The max width of door is 500-1000mm, suitable for door weight of 25-45kg, distance is 126mm*19mm
  • The max width of door is 600-1200mm, suitable for door weight of 45-60kg, distance is 162mm*19mm
  • The max width of door is 1000-2000mm, suitable for door weight of 60-80kg, distance is 229mm*19mm
  • All types with a function of stopping at anchor point of 90°or no anchor point of 180 °


Detail pictures for automatic door closer:


25-45kgs door closer


45-60kgs door closer


60-80kgs door closer


Door closer accessories:


door closer


Customized Silk-screen logo:


door closer customer logo




  • Packaging and shipping


automatic door closer


hydraulic automatic door closer


hydraulic door closer


door closer packing




door closer packaging


door closer package



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