710*2200 High Production Two Roll Rubber Mixing Mill Machine 5.5kw Synchronous Motor

Basic Information
Place of Origin: QINGDAO, CHINA
Brand Name: RUNNING
Certification: ISO, CE
Model Number: XK-450
Minimum Order Quantity: 1 SET
Delivery Time: 30~40days
Payment Terms: L/C, T/T, D/P
Supply Ability: 10 sets/month
Roller Material: Chilled Cast Iron Motor Power: 55kw
Frame Material: Cast Iron Or Welded Steel Lubrication: Bearing With Grease Lubrication
Roller Gap Adjust Method: Synchronous Motor Stock Blender: Optional
Gear Box: Hard-teeth Speed Reducer
High Light:

open mill rubber mixing

,

rubber lab mill

710*2200 High Production Two Roll Rubber Mixing Mill Machine 5.5kw Synchronous Motor


Application:


1. Automobile,motorcycle and bicycle tires and tubes.
2. Rubber shoes,soles and heels.
3. Rubber rafts,P.V.C sheet,artificial leather.
4.Rubber/EVA sponge soles.
5. Rubber rain boots and rain wear.
6. Rubber nipples.sports balls.
7. Rubber rollers,rice rollers.
8. Rubber goods for industry.
9. Rubber goods for automobiles.
10. V-belt and conveyor belts.
11. Rubber cushions.
12. Regenerating rubber.

The mixing is often done on a two-roll mill (open mill). A mill consists of two horizontally placed hollow metal cylinders (rolls) rotating towards each other. The distance/gap between the mill rolls (nip) can be varied, typically between 2 to 20 mm.
710*2200 High Production Two Roll Rubber Mixing Mill Machine 5.5kw Synchronous Motor 0


STEPS IN MASTICATION AND MIXING


Mastication Operation


Set the roll nip opening to 2 mm. Adjust and maintain roll temperature at 7±5 degrees C. Add rubber into the mill nip and band, as a continuous sheet, onto the front roll. Using a hand knife, make two-cuts from each side and allow the rubber to move through the nip quite a few times until a smooth rolling bank is formed on the nip. Now the rubber is sufficiently masticated and thus becomes softer at a reduced viscosity.


Initial Addition of Ingredients


Set the nip opening to 2.5 mm. Add activators (and antidegradants if synthetic rubber) to the rolling bank. Make two-cuts from each side. Cut through the rubber at one end of the roll, remove it, and place it in the nip at the other end, to ensure a homogeneous end-to-end blend.


Addition of Fillers


Increase the nip size to 3 mm. Add fillers. If large amount of fillers is to be added, divide it into 2 or 3 equal parts and add sequentially. For large amount of filler formulation pour on processing aids/plasticisers (oils) incrementally (as are the fillers), after most of the fillers have been mixed in. After each addition of filler portion make three -cuts from each side and again cut through the rubber at one end of the roll, remove it, and place it in the nip at the other end.
Note well that antioxidants may inhibits oxidative breakdown of rubber, they should be added late during mixing of natural rubber. It is advisable to add antioxidant just before the addition of sulphur and accelerator. But with synthetic rubbers an early antioxidant addition can avoid cyclization. (Reference: Moneypenny H, Menting K, Grag F. General Compounding, Rubber Compounding Chemistry and Application 2004 (373); Ed., Brendan Rodgers.)


Addition of Curatives


Add sulfur and accelerator toward the end of the mixing process to avoid premature cross-linking reaction. Make two -cuts from each side and again cut through the rubber at one end of the roll, remove it, and place it in the nip at the other end.


Sheet Out


Sheet out the compound by pressing it with your hands against the roll and allow it to roll back into itself to become a long cylindrical roll. Set the nip size to 8 mm and maintain the roll temperature at 70±5 degrees C . Pass the rolled batch endwise through the mill nip 6 times. This is a homogenization step.
Weigh the rolled batch to measure actual batch weight and % weight loss.
% wt loss = {(theoretical batch wt - actual batch wt) /theoretical batch wt} x 100
Adjust the nip size to give a sheet with minimum thickness of 6 mm when the compound is sheeted out of the mill.

Salient Features


1. Superior Mixing Performance.
2. Low Operating Cost with High Productivity.
3. Compact Construction, maximum Floor Utilization.
4. Latest Technology Update, Meets Current World Standards.
5. Maintenance Free.
6. Reliable and Experienced Service Back Up.
7. Easy to Install & Ready to Run.
8. No continuous Lubrication hence heavy saving on lubrication cost, wear & tear and maintenance.
9. Auto reversing electric Panel.
10. Simple & easy maintenance.
710*2200 High Production Two Roll Rubber Mixing Mill Machine 5.5kw Synchronous Motor 1


Technical Parameters

 


 
Item XK-160 XK-250 XK-360 XK-400 XK-450 XK-550 XK-560 XK-660 XK-710
Roll diameter mm 160 250 360 400 450 550 560-510 660 710
Roll working length
 
320 620 900 1000 1200 1500 1530 2130 2200
Front roll linear speed r/min 9 16.3 16.7 19.3 21.8 22.5 27.2 28 31.9
Speed ratio of rolls
 
01: 01.4 01: 01.1 01: 01.3 01: 01.3 01: 01.3 01: 01.2 01: 01.2 01: 01.2 01: 01.5
Max roll space mm 4.5 8 10 10 12 16 15 0.5-15 0.5-15
Compound feeding capacity kg 1-2 10-15 20-25 18-35 50 50-65 50-65 165 190
Motor power kW 5.5 18.5 30 45 55 110 90 240 280
Dimensions(L× W× H)
 

 

 

 

 

 

 

 

 

 
L mm 1133 2722 4200 4920 5405 6646 6270 7280 8185
W mm 920 1115 1780 1780 1740 2736 2282 3400 3910
H mm 1394 1345 1760 1800 1790 2105 2000 2530 2270
Gross weight T ~2 ~3.2 ~6.5 ~8 ~11.4 ~22 ~22.5 ~49 ~51


710*2200 High Production Two Roll Rubber Mixing Mill Machine 5.5kw Synchronous Motor 2


Services Commitment


1. Our engineers can design target machines for you and send the drawing to confirm.
2. In the process of production, we will take photos and send to customers for you tracking.
3. Documents such as packing list, commercial invoice, and bill of lading etc. will be sent after the delivery.
4. We could supply free English foundation DWG, installation drawing, user guide, maintenance manual and part drawing.
5. We supply overseas technical support
6. Test Machine Before Delivery, you only need to connect the wires to the outside the control cabinet.

 

710*2200 High Production Two Roll Rubber Mixing Mill Machine 5.5kw Synchronous Motor 3710*2200 High Production Two Roll Rubber Mixing Mill Machine 5.5kw Synchronous Motor 4710*2200 High Production Two Roll Rubber Mixing Mill Machine 5.5kw Synchronous Motor 5

 

Our workshop:

 

710*2200 High Production Two Roll Rubber Mixing Mill Machine 5.5kw Synchronous Motor 6

Contact Details
Mike

Phone Number : +8618560670885

WhatsApp : +008618669746703