
Tel:0755-61351607
WhatsApp : 86-13723749176
Email :sales@efhfactory.com
EF INTERNATIONAL CO. LTD
75mm lever arch mechanism + Metal Compressor Bar
Thickness : 60c & 65C
Hole Size : 3.8mm ,4.2mm , 4.5mm
Finish : Checkered Finish
Compressor Bar :
Size : 122mm & 130mm
Button : Metal & Plastic

How Material Thickness Affects Performance of Lever Arch Mechanisms
In the manufacturing of lever arch mechanisms, material thickness plays a decisive role not only in cost, but also in performance and quality.
At our factory, we classify thickness into different grades such as 55C, 60C, 65C, 70C, and 90C to meet different application requirements.
Material thickness directly affects:
· Load-bearing capacity
· Opening and closing flexibility
· Durability (anti-deformation and anti-fracture)
· Surface treatment performance
The thicker the material, the stronger the load-bearing capacity.
�� Thicker materials:
· Can hold more paper without bending
· Maintain structural stability
· Reduce risk of deformation under heavy use
�� Thinner materials:
· More suitable for light-duty applications
· May deform under excessive load
Material thickness also affects the smoothness of operation.
�� Proper thickness ensures:
· Smooth opening and closing
· Stable mechanical performance
· Consistent user experience
�� If the material is too thin:
· The mechanism may feel loose
· Reduced precision over time
�� If too thick:
· May increase operating resistance if not properly engineered
�� Therefore, choosing the right thickness is critical to balance:
flexibility + strength
Thicker materials are more resistant to bending and deformation.
· 55C → more likely to deform under long-term use
· 60C / 65C → balanced performance
· 70C / 90C → excellent structural stability
Higher thickness reduces the risk of cracking or breaking under stress.
�� Especially important for:
· Heavy-duty use
· Frequent opening/closing
· Long-term archiving
Material thickness also has a direct impact on surface finishing quality.
�� Thicker materials provide:
· Stronger plating adhesion
· More stable surface coating
· Better resistance to peeling
1. More stable substrate
→ The base metal is stronger and less likely to deform
2. Better coating bonding
→ Zinc or nickel layer adheres more firmly
3. Improved durability
→ Coating lasts longer under friction and use
�� In contrast, thinner materials may result in:
· Weaker adhesion
· Easier coating wear
· Shorter product lifespan
Thickness | Load Capacity | Flexibility | Durability | Surface Finish |
55C | Low | Good | Basic | Standard |
60C / 65C | Medium | Balanced | Stable | Good |
70C / 90C | High | Strong | Excellent | Best |
· 55C → cost-sensitive and light-duty applications
· 60C / 65C → most commonly used standard grade
· 70C / 90C → heavy-duty and premium applications
�� The selection should be based on:
· Usage environment
· Load requirements
· Expected lifespan
With over 24 years of experience, we provide:
· Multiple thickness options (from 55C to 90C)
· Strict quality control in stamping and assembly
· Advanced surface treatment processes (zinc / nickel plating)
· Stable performance and long service life
We ensure that every product meets both functional and quality requirements.
Material thickness is a key factor that affects:
· Load-bearing capacity
· Operational flexibility
· Durability (anti-deformation and anti-fracture)
· Surface treatment adhesion
Choosing the right thickness ensures better performance and longer product lifespan.
Contact us for professional recommendations and samples.

EF INTERNATIONAL CO. LTD
Tel:0755-61351607
WhatsApp : 86-13723749176
Email:sales@efhfactory.com
Office Add : Xiangtiwan Buliding , Xi xiang Town , Baoan City , Shenzhen of China
Factory : No. 1 Plant, Guo Tong Company Industrial Park , Decheng Town , DeQing Country , ZhaoQing City , GUANGDONG,CHINA
Company Reg: EF International Co. Ltd