EPDM Sealing Strip Extrusion Line, Microwave Vulcanization Tunnel, Rubber Profile Production Equipment

EPDM Sealing Strip Extrusion Line, Microwave Vulcanization Tunnel, Rubber Profile Production Equipment

Microwave Vulcanization Oven for EPDM Sealing Strip

This microwave vulcanization tunnel is the core equipment of continuous EPDM weatherstrip extrusion line, adopting microwave + hot air combined vulcanization technology, widely used for automotive, construction and railway EPDM solid, sponge and tri-extrusion sealing profiles.

Working Principle

Adopting industrial 2450MHz microwave dielectric heating. Microwave penetrates into EPDM profile directly; polar molecules inside rubber vibrate rapidly under alternating electromagnetic field and generate heat from inside out simultaneously. The rubber reaches vulcanization temperature in a short time for cross-linking reaction. The microwave section rapidly heats and pre-vulcanizes the profile, while the following hot air tunnel keeps constant temperature to complete full curing, avoiding uneven curing such as under-cure.

Main Structure

Microwave resonant cavity, magnetron & waveguide assembly, circulator water load, anti-leakage choke system, high temperature conveyor belt, hot air circulating heating unit, PLC control system with multi-zone temperature & power adjustment.

Features

1. Fast heating, high continuous production speed
2. Uniform curing for complex profiles, low compression set, smooth surface
3. Energy saving compared with pure hot air oven
4. Suitable for mono-layer, sponge, two-layer & tri-extrusion EPDM weatherstrip
5. Interlock safety protection for microwave leakage, over-temperature alarm

Technical Parameters

Frequency:2450MHz Effective cavity length:6m/8m/12m customized Line speed:2~12 m/min variable frequency Multi-zone independent temperature & microwave power control

Application

EPDM door & window seal, auto weatherstrip, curtain wall seal, rail transit rubber profiles, metal carrier tri-compound sealing strips

Technical Specifications

	Device Name	8m Microwave Vulcanization Tank
1	Overall Dimensions	8900mm×750mm×1400mm (L×W×H)
2	Product Transportation Height	1050+20-30mm (with surface)
3	Product Channel Opening	The effective size is 100mm (H) × 180mm (W), and the effective size above the conveyor belt is 70mm.
4	Conveying Method	Teflon coated glass fiber tape
5	Conveyor Belt Width	170mm
7	Door Opening Mode	Manual opening
8	Speed Control	Proportional regulator control
10	Microwave Adjustment Mode	Maximum 0~12kw continuously adjustable, with automatic compensation to ensure stable microwave output power
11	Magnetron Model	MG12W-M1U3C adopts water cooling
12	Magnetron Frequency	2450±50MHz
13	Microwave Power Supply	Microwave power supply
14	Magnetron Working Environment:	Room temperature ~ 40℃, relative humidity below 90%, indoors without corrosion or open flame
15	Microwave Feed Method	waveguide feed
16	Waveguide Model	l BJ-26
17	Microwave Leakage	Less than 5mW/cm2 at a distance of 5cm from the device
18	Heating Method	Electric heating
20	High Temperature Fan Power And Flow	1.1KW up to 38m³/min
21	Inner Tank Material	Stainless steel plate
22	Heating Temperature	Working temperature Room temperature ~ 280℃
23	Temperature Control	Thermostat Control Solid State Relay
24	Speed Display .	Installed in the operation box on the inlet side of the equipment. A speed meter, switch and potentiometer are installed in the speed control box. The speed unit is M/min.
25	Temperature Control Accuracy:	The temperature difference measured at any point in the drying tunnel is not greater than 10°C, and the temperature measured at the same point fluctuates ±2°C.