Gold Member Since 2017
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Qingdao Running Machine Co., Ltd.

Two Roll Mill, Open Mill, Mixing Mill manufacturer / supplier in China, offering Customizations Open Type Mixing Mill/ Two Roll Mixing Mill, Jaw Type Flat Vulcanizing Press/ Rubber Curing Press, 110liter Rubber Internal Kneader Machine for Rubber and Plastic and so on.

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Supplier Homepage Product Rubber Mixing Mill Customizations Open Type Mixing Mill/ Two Roll Mixing Mill

Customizations Open Type Mixing Mill/ Two Roll Mixing Mill

FOB Price: US $12,300-12,350 / Piece
Min. Order: 1 Piece
Min. Order FOB Price
1 Piece US $12,300-12,350/ Piece
Get Latest Price
Port: Qingdao, China
Production Capacity: 10sets/Month
Payment Terms: L/C, T/T, Western Union, Paypal

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Basic Info
  • Model NO.: XK-360
  • Control Type: PLC
  • Power Source: Electric
  • Moter Power: 30kw
  • Gearbox: Hard Tooth Surface Reducer
  • Relay Brand: Schneider
  • Transport Package: Wooden Case + Steel Frame
  • Origin: China
  • Warranty: 5 Years
  • Automatic Grade: Semi-Automatic
  • Type: Rubber Mixer
  • Roller Materials: Chilled Alloy Cast Iron
  • Moter Brand: Siemens
  • Trademark: RUNNING
  • Specification: XK-450
  • HS Code: 8477800000
Product Description
Product Description
Production Name: Customizations Open Type Mixing Mill/ Two Roll Mixing Mill
Model: XK-360
Typical Applications:
 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.

Construction & Features
1. Stand:steel casting(Ultra Sonically tested)
2. Base:One piece construction of welded steel plate or cast iron provides maxumum stability.
3. Rolls:Chilled cast iron rolls with surface hardness 75±2 HSD
4. Lubrication: Forced feed oil lubrication.
5. Motor:Energy efficiency motors of top brand make.
6. Gear Box: Three stage helical gear box of standard make.
7. Safety:Complete safety features for operator and machine.

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.

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.
Technical Parameters

Roll diametermm160250360400450550560-510660710
Roll working length
Front roll linear speedr/min916.316.719.321.822.527.22831.9
Speed ratio of rolls
01: 01.401: 01.101: 01.301: 01.301: 01.301: 01.201: 01.201: 01.201: 01.5
Max roll spacemm4.5810101216150.5-150.5-15
Compound feeding capacitykg1-210-1520-2518-355050-6550-65165190
Motor powerkW5.518.530455511090240280
Dimensions(L× W× H)









Gross weightT~2~3.2~6.5~8~11.4~22~22.5~49~51

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.

Customizations Open Type Mixing Mill/ Two Roll Mixing Mill

Customizations Open Type Mixing Mill/ Two Roll Mixing Mill
Customizations Open Type Mixing Mill/ Two Roll Mixing Mill

 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. 
1. Delivery time of the rubber machines? 
 This is specially designed machine according to your specific requirement.
 From engineer designing to production completion, it needs about 25 to 35 days.
2. What does your factory do regarding quality control?
 We pay much more importance to quality control from the very beginning to the end of production.
 Every machine will be fully assembled and carefully tested before shipment.
3. What's the machine quality guarantee? 
 Quality guarantee time is one year.We choose world famous brand components to keep our machine in perfect working condition.
4. Are you able to give installation and commissioning overseas? How long time will it take?
 Yes, we can supply overseas service and technical support but customer needs to pay for the cost of the installation.
 Small machine usually takes within 2~3 days.
 Big plant usually takes about 30 days.
5. How can I trust you to deliver the right machine as I ordered? 
We will absolutely deliver a good quality machine as we discussed and confirmed in the order.
 The core of our company culture is innovation,quality,integrity and efficiency. Also we have had many good cooperation with world famous rubber production manufacturers. If you come to our factory, we can show you're the user around us.
6. How can we go to your side?  
We are located in Qingdao City, Shandong province, China. The name of airport is Qingdao liuting airport.
We will pick up you at the airport.

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Customizations Open Type Mixing Mill/ Two Roll Mixing Mill

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Customizations Open Type Mixing Mill/ Two Roll Mixing Mill


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