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Water Cooling Two Roller Rubber Mixing Mill with PLC Control and 30kg Capacity for Rubber Manufacturing

Name: Water Cooling Two Roller Rubber Mixing Mill with PLC Control and 30kg Capacity for Rubber Manufacturing
Brand: Qingdao Beishun Environmental Protection Technology Co.,Ltd
SKU: XK-400
Price: 120000.00 USD
Availability: InStock

Brand Name:	Beishun
Model Number:	XK-400
MOQ:	1set
Price:	Negotiable
Payment Terms:	T/T,L/C
Supply Ability:	30sets

Detail Information

Product Description

Detail Information

Place of Origin:

Qingdao

Certification:

ISO/CE

Model Type:

XK-400 XK-450 XK-560 XK-550

Packing:

Wooden Case Or Steel Frame

Working Length:

1000 Mm

Gap Adjustment:

Manual Or Automatic

Roller Length:

1000mm

Control Mode:

PLC

Driving Motor:

30kw

Capacity Per Batch:

30kg

Startup Method:

One-key Start

Rollerstructure:

Cast Iron

Maxgap:

15mm

Roller Type:

Hollow Type / Drilling Roll

Spacing Adjustment Method:

Manual Or Electric

Rubber Strip Cutter:

Pneumatic/Motorized

Packaging Details:

Wooden box/20GP/40GP

Highlight:

Hard Tooth Surface Rubber Mixing Mill

Water Cooling Rubber Mixing Mill

Two Roller Rubber Mixing Mill

Product Description

Hard Tooth Surface Reducer Water Cooling Two Roller Rubber Mixing Mill

Professional rubber mixing equipment designed for manufacturing rubber products in industrial factory settings. Features hard tooth surface reducer and water cooling system for optimal performance.

Available Sizes and Types

Our rubber mixing mills are available in multiple configurations to suit various production needs:

Standard Sizes

Laboratory 6-inch, 10-inch, 12-inch, 14-inch, 16-inch, 18-inch, 22-inch, 24-inch, and 26-inch mixing mills

Automation Levels

Automatic rubber turning, hydraulic baffle, electric adjustable, hydraulic adjustable, and variable frequency speed mixing mills

Three Basic Mixing Processes

1. Wrapping the Rollers

The initial process where rubber engages with the mill rollers. Four distinct scenarios can occur:

Low Temperature/Hard Rubber: Rubber accumulates and slides without entering roller gap
Optimal Elastic State: Rubber wraps front roller perfectly for efficient mixing
Excessive Temperature: Rubber loses elasticity, forms bag-like shapes, disrupting operations
High Temperature State: Rubber enters viscous flow state, making cutting difficult

2. Powder Eating Stage

The process of mixing compounding agents into the rubber compound:

Requires proper accumulated rubber retention at roller gap upper end
Compounding agents enter through wrinkle grooves into roller gap
Optimal contact angle: 32-45 degrees for efficient mixing
Insufficient accumulation reduces dispersion effectiveness
Excessive accumulation prevents proper compound integration

3. Refining Process

Final mixing stage addressing dispersion challenges:

Rubber flows circumferentially without axial movement
Laminar flow creates "dead layers" affecting dispersion
Wedge-shaped "reflow zones" in accumulated rubber
Specialized techniques required for uniform compound distribution

Technical Specifications

Parameter/Model	XK-160	XK-250	XK-300	XK-360	XK-400
Roll Diameter (mm)	160	250	300	360	400
Roll Working Length (mm)	320	620	750	900	1000
Capacity (kg/batch)	4	15	20	30	40
Front Roll Speed (m/min)	10	16.96	15.73	16.22	18.78
Roll Speed Ratio	1:1.21	1:1.08	1:1.17	1:1.25	1:1.27
Motor Power (KW)	5.5	18.5	22	30	37
Length (mm)	1104	3230	4000	4140	4578
Width (mm)	678	1166	1600	1574	1755
Height (mm)	1258	1590	1800	1800	1805
Weight (KG)	1000	3150	5000	6892	8000

Frequently Asked Questions

What is a rubber mixing mill?

A rubber mixing mill is a machine consisting of two counter-rotating rolls that are used to mix, knead, and homogenize rubber compounds. It is commonly used in the rubber industry to prepare rubber for further processing, such as calendering, extrusion, or molding.

How does a rubber mixing mill work?

The rubber mixing mill works by passing rubber compounds through two rotating rolls. The rolls rotate at different speeds (friction ratio), creating shear forces that mix and homogenize the rubber with additives like fillers, curing agents, and processing aids.

What are the main components of a rubber mixing mill?

Rolls: Two counter-rotating rolls made of hardened steel
Frame: Sturdy structure to support the rolls
Drive System: Motor and gearbox to power the rolls
Adjustment System: To control the gap between the rolls
Cooling System: To regulate the temperature of the rolls
Safety Devices: Emergency stops and nip guards

What is the friction ratio in a rubber mixing mill?

The friction ratio is the speed difference between the two rolls. Typically, the front roll rotates slower than the back roll, creating shear forces that help mix the rubber compound effectively. Common friction ratios range from 1:1.1 to 1:1.4.

What materials can be processed in a rubber mixing mill?

Rubber mixing mills are primarily used for natural rubber, synthetic rubber, and rubber compounds. They can also process materials like EPDM, SBR, NBR, and silicone rubber, along with additives like carbon black, silica, plasticizers, and curing agents.

What are the advantages of using a rubber mixing mill?

Efficient mixing and homogenization of rubber compounds
Flexibility in processing different rubber types and formulations
Ability to handle small to medium batch sizes
Cost-effective for small-scale production

What are the limitations of a rubber mixing mill?

Requires skilled operators for optimal results
Limited batch size compared to internal mixers
Longer mixing times for large batches
Heat generation can affect rubber properties if not controlled

How do you maintain a rubber mixing mill?

Regularly lubricate moving parts
Check and adjust roll alignment
Inspect and replace worn-out rolls
Clean the rolls and machine after each use
Monitor the cooling system to prevent overheating

What safety precautions should be taken when operating a rubber mixing mill?

Always use nip guards to prevent hand injuries
Avoid loose clothing or jewelry that could get caught in the rolls
Use emergency stop buttons in case of emergencies
Train operators on proper handling and safety procedures

What is the difference between a rubber mixing mill and an internal mixer?

Rubber Mixing Mill: Uses two rolls to mix rubber compounds; suitable for small to medium batches; requires manual feeding and cutting
Internal Mixer: Uses rotors inside a closed chamber; suitable for large batches; faster and more automated but less flexible for small-scale production

How do you choose the right rubber mixing mill?

Consider factors such as: roll size and capacity, friction ratio, power and speed requirements, cooling system efficiency, material compatibility, budget and production needs.

What is the typical temperature range for rubber mixing mills?

The temperature of the rolls is usually maintained between 40°C to 70°C (104°F to 158°F), depending on the rubber compound and processing requirements. Excessive heat can degrade the rubber.

Can a rubber mixing mill be automated?

Yes, modern rubber mixing mills can be equipped with automation features like programmable logic controllers (PLCs), automatic roll gap adjustment, and feeding systems to improve efficiency and consistency.

What are common problems with rubber mixing mills?

Uneven mixing due to improper roll gap or friction ratio
Overheating of rubber compounds
Roll wear and misalignment
Inconsistent batch quality due to operator error

Where are rubber mixing mills used?

Rubber mixing mills are used in industries such as: tire manufacturing, rubber sheet production, hose and belt manufacturing, footwear and rubber goods production.

For more specific questions about rubber mixing mills, our technical team is available to provide detailed assistance.

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