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Rotary Damper

What is Rotary Damper?
Rotary Damper Collection
Toilet Seat Rotary Damper
Automobile Rotary Damper

Linear Damper

What is Linear Damper?
Linear Damper

Gas Spring

What is Gas Spring?
Gas Spring Calculation
Company Profile
Factory Tour

Soft Motion

Amaze your consumers with a more friendly and thoughtful design.

Rotary Damper

Rotary damper is a rotational device to slow down an objective’s movement.

The temperature-resistant oil generates fluid resistance to achieve the desired soft-closing or soft-opening force, either one-way or two-way. The gentle movement and mute effect make your product feel luxurious and safer, and also offers a brilliant user experience. 

Click to know more:

what-is-rotary-damper？

Rotary Damper Family

Peir, a rotary damper manufacturer, is working with many world-class companies globally. With a manufacturing base in China and service branches across North America, Europe, South America, and Asia, Peir offers an extensive collection of dampers, ensuring easy and reliable solutions for diverse product designs. These dampers can categorize into different types; they are:

  • By rotate angle: Infinite or Finite.
  • By working directions: one-way or two-way.
  • By design/shape: Vane damper, Gear Damper, Disc Damper, Barrel Damper, etc.
  • Torque can be big or small if the size or material changes.

Also, the minimum lifecycle is 30,000, some models can achieve up to 60,000 cycles.

vane-damper1
Vane Damper(Limited Angle & Infinite Angle)
  • Diameter 10 to 22mm
  • Torque up to 90KGF.CM
  • Max rotate angle:360 degree
  • One way or two way damping
  • Lifecycles up to 30,000
Gear Damper
  • Diameter 10 to 25mm
  • Torque up to 4500GF.CM
  • Max rotate angle: 360 degree
  • One way or two way damping
  • Lifecycles up to 60,000
BARREL DAMPER
Barrel Damper
  • Diameter 8  to  20mm
  • Torque up to 23,000GF.CM
  • Max rotate angle: 360 degree
  • One Way or two way damping
  • Lifecycles up to 60,000
disc-damper1
Disk Damper
  • Diameter 47 to 57mm
  • Torque up to 6.0 Nm
  • Max rotate angle: 360 degree
  • One way or two way damping
  • Lifecycles up to 50,000
Keeping Damper
  • Diameter 10mm to 16mm
  • Torque up to 35KGF.CM
  • Max angle 270°
  • Two way damping
  • Lifecycles up to 25,000
Hydraulic Damper
  • 20-35KG rotating body
  • Max angle 150°
  • One way damping
Spiral-linear Damper
(With assist force)
  • Diameter 16mm to 21mm
  • Torque up to 50KGF.CM
  • Max angle 110°
  • Two way damping
  • Lifecycles up to 30, 000
Driving Motor
  • Diameter 28mm
  • Torque up to 50KGF.CM
  • Max angle 125°
  • Lifecycles up to 11,000

Lastest Innovation

JP-CN20A

  • Easy Lid Opening:
Reduce 30% of the opening force;
Friendly and Premium feeling.
  • Activate Angle 30 degree：

Traditional damper activate from ~50 degree

  • Adjustable Torque：
Max 4 N.m, with ±20% adjustability.

PR-T115

  • Easy Lid Opening:
Reduce 30-50% of the opening force;
Friendly and Premium feeling.
  • Activate Angle 15 degree：
Traditional damper activate from ~50 degree
  • High Torque ：
Max 10 N.m
Customization
Get custom damping solutions in 7 days, crafted by our expert team with online collaboration. No communication gap.

Torque Calculation

To select an appropriate torque, the length and the weight or the centre of gravity of the flap have to be known.
Torque curve

Torque Calculation：

Example 1:

It shows a tradtional soft closing lid, like toilet seat or top-load washer lid.
To select an appropriate torque, the length and the weight or the centre of gravity of the flap have to be known.
Controlled slow closing down.
Showed on the above figure, the flap starts to close down from position of less than 90 to horizon position.
Example (90°~0°）
M=2kg, L=300mm
Fmax=2*9.8*3.3/2=2.94N.m
Fdamper=3.0N.m

Torque Calculation：

Example 2:

It shows a continuous rotating mechanism or the mechanism with spring, like shade, soft-opening lid)
The interaction between load, spring, and damper, and the rotation torque curve of load acting on damper:
Example:
M=2Kg,d=10mm
Fload=2×9.8×0.01=0.196Nm
F spring=0.3 Nm
F damper=F spring – F load=0.1Nm

Production Automation

Yearly, we produce 50 million precision rotary dampers with advanced automation for quality and cost-efficiency.
With 83 measuring devices and 123 production devices, we have a monthly capacity of 4 million units,full equipped for damper measurement and manufacturing.
  • 24 injection molding machines
  • 24 robotic arms
  • 5 zinc alloy die-casting machines
  • 5 LNC-R6800 robotic arms, grinding machine
  • 22 ultrasonic units
  • 22 glue dispensers
  • 5 shredding machines
  • 3 injection molding machines
  • 4 automated O-ring machines
  • 4 assembly workshops
  • 4 linear rod workshops

Quaranteed Quality

Automobile Quality Standards
100% Pre-shipment Inspection

Where are Damper Used?

Rotary dampers are used in the interior of vehicles, washing machines, refrigerators, coffee machines, toilet covers, furniture, and much more device with a lid or hinge that requires frequent, quiet, and smooth opening and closing.

How To Install Rotary Damper?

How do rotary dampers work? Rotary dampers work by rotation around a single axis. The oil inside the damper produces a damping torque on the movement of the moving parts.

Global Team

Hi, my friend. Thanks for your interest in our damper and gas spring.
When you contact us, you’ll almost always speak with our experienced team, who really want to help…
Here is our team around the world to support you.

Dongguan Factory

Email: zola@peir-hk.com

HongKong Office

 Email: zola@peir-hk.com

USA office

Email:valeria.gomez.olivar@gmail.com

Mexico office

Email: valeria.gomez.olivar@gmail.com

India office

Email: abhishek.pandey@peir-hk.com

Brazil Office

Email: info@peir-hk.com