Cryogenic Shotblast Deflashing Machine for PU Bumpers
Company Profile
NANJING PEGE TECHNO MACHINE CO., LTD is a leading quality and customer-oriented manufacturer and supplier who is specialized in providing rubber and plastic industry machines. Rubber sector machines focus on deburring and cutting machines include cryogenic de-flashing machine, spin trim de-flashing machine as well as rubber strip or gasket cutting machine. Plastic sector machines focus on material precision feeding include the Gravimetric Loss-in-weight feeders and its affiliated system including uploading and supplementary system
Cryogenic De-burring Machine aims at realizing faster quality production cycle with least rejection on those parts including rubber molded, plastic injection molded and die-casting components' flashes removal process.
Cryogenic deflashing/deburring machine is applied to deflash or remove the flashes of polyurethane bumpers for Automotive shock absorption.

Cryogenic Shotblast Machine from Nanjing Pege
Pege will explain how the cryogenic deflashing machine can efficiently remove the flashes of PU bumpers.
MODE
|
PG-120T
|
SIZE(L*W*H)
|
1200*1250*2200MM
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WEIGHT
|
1000KG
|
POWER
|
Ac380v 50Hz
|
ELECTRICTY
|
8Kw*3Ph
|
TEMPERATURE
|
-130 - +50℃
|
PRESSURE
|
0.5-0.7Mpa
|
CAPACITY
|
100L or 120L
|
EFFECTIVE CAPACITY
|
40L`
|
WHEEL SPEED
|
3000rpm - 7000rpm
|
COOLING MEDIA
|
Liquid Nitrogen
|
OPETATION MODE
|
Touch Screen
|
FRAME
|
|
WHEEL DIAMETER
|
AL φ350mm
|
BLASTING POWER
|
143.m/s
|
PRODUCTIVITY
|
400-500 Kg/Day
|
A.Processing Parameters Description
Cryogenic deflashing/deburring process has six main parameters, temperature, wheel speed, barrel speed, and processing time, media size and quantity
Temperature: The cooling temperature to freeze the flashes
Wheel speed: Decide the power shot on the flashes with media
Barrel speed: The tumbling speed of the barrel to keep all the parts be blasted.
Processing time: Processing time depends on the processing result and quantity of the parts.
Media size: 0.5 0.8 1.0 1.2 and 1.5mm, each one has different power.
Quantity: The number of parts can be processed
We always use these 6 parameters to describe the right processing parameter and adjust gradually to find a best one.
B. Part Description
Refer to the parts information, it is suitable for the nitrogen deflashing machine as the material, size, shape are all Ok.
--Material is good and suitable for cryogenic deflashing
--Size is a little small, which is also Ok
--Flash condition is relatively good as it is flat and thin, most is less than our requirement 0.2mm.
The processing result is relatively good according to our experience and inspection.
C. Processing steps of Liquid Nitrogen Deflashing

D. Processing Result Comparison
We can check the process result from the following pictures to see how beatiful work the cryogenic deflashing machine has done.


F. Production Volume Estimation
|
Part No.
|
Weight g/pc
|
Qty/Cycle pcs
|
Qty/H
|
Qty/Day[10hours]
|
120Liter
|
No.1
|
70g
|
160pcs
|
1280pcs
|
12800
|
No.2
|
45g
|
140pcs
|
1120pcs
|
11200
|
No.3
|
40g
|
140pcs
|
1120pcs
|
11200
|
No.4
|
45g
|
140pcs
|
1120pcs
|
11200
|
We can see that the cryogenic deflashing technology has a very efficient and precision deflashing process on the PU bumpers for the Automotive industry to improve the production efficiency and reduce the labor cost.