CNC Punching Line for Vehicle Longeron (PPL1255)

  • Model NO.: PPL1255
  • Punch Shape: Semi-Open Punch
  • Slider Drive Mechanism: Screw Press
  • Automatic Grade: Automatic
  • Precision: High Precision
  • CNC: High Precision
  • Plate Width: 250~550mm
  • Machine Power: 70kw
  • Transport Package: Container
  • Origin: China
  • Type: High-Speed Punching Machine
  • Slider Movement: Triple Action
  • Controlling Mode: CNC
  • Power Source: Hydraulic Pressure
  • Certification: ISO 9001
  • Plate Length: 4000~12000mm
  • Plate Thickness: 4~12mm
  • Trademark: FIN
  • Specification: 1400×200---12000×550

CNC Punching Line for Vehicle Longeron (PPL1255)
This Machine is a punching machine used to punch holes on steel plate for longitudinal beam of Auto. The punching unit equipped with 25 punching dies which could meet the industry's technical requirement, adopt C type open frame machine body, easy for maintenance. Use side-push device and plate width detection equipment, ensure machine accuracy and efficiency. The processing line include Magnetic loading and unloading device which to make the processing procedure more flexible.

CNC Punching Line for Vehicle Longeron (PPL1255)
Loading system and guideway

CNC Punching Line for Vehicle Longeron (PPL1255)
Machine punching unit



The Main specification:
Punching force: 1200KN
Length of work piece:4000~12000mm
Width of work piece: 250~550mm
Thickness of work piece: 4~12mm
No. of Punching die: 25
Max. Punching diameter: 60mm
Total machine power: About 70KW
The requirement to the work piece:
1.size:thickness:4~12mm,length:4000~12000mm,width: 250~550mm
2. condition of work piece:
2.1 Sickle-shaped distortion:
   Length of work piece             Sickle-shaped distortion
     <10000mm                       ≤7mm
     10000~12000mm                  ≤9mm
2.2 Plate warping:≤10mm/1000mm,≤50mm/12000mm.
2.3. Max. weight of work piece:600Kg
2.4. The width difference of the whole plate≤50mm.
2.5.Mechanical properties of work piece :σb=550~700N/mm2
2.6 About the positioning:
2.6.1 The work piece is blank plate,the end of the plate is the reference point (zero point) and the machine can confirm the center line by the two longitudinal edges of plate.
2.6.2 the positioning is reliable and precisely;easy to operate and maintenance,
2.7.punching precision :
 Precision between two holes:
 X≤±0.15mm/400mm;X≤±0.30mm/3000mm;X≤±0.50mm/12000mm              
Precision between two holes:    Y≤±0.20mm/550mm
 Procedure:
1.size of machine :length: 27000mm,width: approx.7200mm,height: approx.3300mm.
2. Processing direction: from left to right.
3 size of workpiece:length:12000mm,width:500mm,hole's No.350,thickness:8mm,average processing speed: 7.5 min/piece.(excluding loading and unloading time)

Convex Plastic Roller: Hebei Naimei Bearing Co., Ltd. produces kinds of Convex plastic rollers. It could be standard bearing 608 or 626 or other types injected with plastic material of POM or Nylon. Or, it could also be non-standard bearings injected of plastic materials. It is used widely in sliding applications, such as sliding doors, sliding windows, shower doors, glass doors, aluminium doors or furniture wheels, etc,is also called shower sliding door roller. Convex plastic rollers are very multi-functional. Right now, our products are being exported to Brasil, Spain and Turkey, with good credit.




Hebei Naimei Bearing Co., Ltd. produces types of plastic bearing rollers:

1). Material: Carbon Steel/ Chrome Steel Bearing + Plastic( POM/ NYLON) Injection;

2). Application: for Aluminium Door and Windows; Aluminium Hardware Accessories and other sliding applications;

3). Plastic Color: Various, as per Request;

-- For any detailed inquiry of Non-Standard Bearing rollers, pls contact us freely. We will make a response within 12 hours.


Sliding Plastic Roller - Factory Direct Hot Sale

Bearing rings: Dimension tolerance, geometric tolerances, and surface quality of bearing` s working surface will influent the operating noise. Naimei Bearing adopts precision CNC machining to dimension precision,  geometric tolerances, design drawing, mold making, grinding, cleaning,  assembly, testing, every link of strict checks, so as to ensure all our products are tested by our strict criteria.

Balls:  The balls evenly with by the cage, often make rolling movement between 2 rings. The shape, size and number will directly influent bearing`s load tolerance and operating capability. We use high precision, small vibration steel ball. It`s surface must be strengthened, no bumps scratches, lacerations, pitting and notch.

Cage: Enclose and move with all or part of the balls. It also be used to insulate the balls, guide the balls` movement and to improve lubrication performance inside the bearing., etc. Naimei Bearing`s cage is commonly made of cold rolling carbon steel. But in the corrosiveness environment, nonparallel or high-speed situation, stainless steel, engineering plastics cagecan be decided on request.

Seal: Naimei Bearing adopts different kind of seal material to meet the requirement of their operating in high temperature and being compatible with grease. Acrylonitrile-butadiene rubber is our standard material. but in high temperature environment ,often adopt fluorocarbons, silicone , PTFE shield.

V track plastic roller

608zz 626zz 625zz convex round plastic roller



Convex plastic roller


Convex Plastic Roller

Convex Plastic Roller,Sliding Furniture Roller,Bearing Furniture Roller,Plastic Roller Ball Bearing

Hebei Naimei Bearing Co., Ltd. , https://www.nmn-bearing.com

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