Rubber filter press

Model XJ-120 XJ-150 XJ-200 XJ-250 Screw Diameter (mm) 120 150 200 250 Length-to-Diameter Ratio 5:1 5:1 5:1 5:1 Motor Power (kW) 37 55 75 110 Screw Speed (r/min) 30–50 30–50 30–50 30–50 Output (kg/h) 200–400 350–450 400–800 600–1000 Applications and Features A rubber filter machine is a device that uses the pushing and conveying action of a screw to remove impurities from raw rubber or reclaimed rubber. It mainly consists of a screw, a barrel, a filter head, and a drive mechanism. The filter head is equipped with a perforated plate and a filtration mesh; the perforated plate supports the filtration mesh and serves as the discharge port, featuring conical holes that widen in the direction of rubber flow. Safety Operating Procedures for Rubber Filter Machines 1. Before filtering, preheat the filter head and body to the specified temperature. 2. The motor load must not exceed the rated value (160 amperes). 3. During normal filtration, the maximum rubber temperature should not exceed 140°C; for chloroprene rubber, the limit is 105°C. 4. Do not filter burnt rubber mixtures, and ensure that filtered mixtures contain no charred particles. 5. Cold rubber must not be filtered; if cold rubber needs to be processed, it must first be softened before filtration. 6. Do not introduce metallic or other foreign objects into the filter machine. 7. Never manually stuff rubber into the feeder or attempt to remove rubber by hand while the machine is running. Technical Highlights of Rubber Filter Machines 1. Screw diameters are typically 150 mm or larger. 2. The length-to-diameter ratio is generally around 5:1. 3. The screw structure features uniform pitch and depth. 4. Compression ratios are very low—many models operate without compression. 5. Rotational speeds are relatively slow, requiring high power output to achieve efficient filtration. 6. Cooling is essential for extruders, but even more so for rubber filter machines. 7. The diameter of the screen holes is approximately 1.7 times the screw diameter. 8. Filtration meshes usually have a mesh count of around 50. Rubber filter machines, including those used for inner tube filtration, are designed to remove impurities from rubber compounds. Their filter heads are hinged and mounted on flanges attached to the machine body, with a worm-gear drive system for easy opening and closing, ensuring energy efficiency and convenient operation. The machine body incorporates spiral-shaped water‑vapor channels that provide excellent temperature control, along with thermocouples, temperature sensors, and millivolt meters for precise temperature monitoring. Both the screw and liner are made of high-quality alloy steel and undergo nitriding treatment, offering superior strength and wear resistance. The reducer employs involute cylindrical gear transmission, featuring a compact oil‑bath lubrication system that keeps weight low.

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Rubber filter press

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Rubber filter press

Model number	XJ-120	XJ-150	XJ-200	XJ-250
Screw diameter mm	120	150	200	250
Length-to-diameter ratio	5:1	5:1	5:1	5:1
Motor power kW	37	55	75	110
Screw rotational speed r/min	30-50	30-50	30-50	30-50
Production rate kg/h	200-400	350-450	400-800	600-1000

Uses and Features

A rubber filter machine is a device that uses the screw’s pushing and conveying action to remove impurities from rubber compounds or reclaimed rubber. It mainly consists of a screw, a barrel, a filter head, and a drive mechanism. The filter head…

The upper section is equipped with a perforated plate and a filter screen; the perforated plate supports the filter screen and serves as the discharge port, featuring conical holes that widen in the direction of the rubber compound flow.

Safety Operating Procedures for the Glue Filtration Machine

1. Prior to filtration, the die and barrel must be preheated to the specified temperature.

2. The motor load must not exceed the specified limit (160 amperes).

3. During normal filtration, the temperature of the filter rubber shall not exceed 140°C; in particular, for chloroprene rubber, the maximum temperature shall not exceed 105°C.

4. The mixed adhesive that has already been scorched shall not be filtered, and the filtered mixed adhesive shall be free of scorch particles.

5. Cold glue must not be filtered; if filtration is necessary, it must first be softened by pressing before filtering.

6. Do not introduce metallic or other foreign materials into the rubber extruder.

7. It is strictly prohibited to insert rubber into the feeder by hand or to remove rubber from the machine while it is running.

Key Technical Points of the Glue Filtration Machine

1. The screw diameter of a plastic extruder is generally 150 mm or greater.

2 The length-to-diameter ratio is typically around 5.

3. A screw structure with equidistant and equal-depth threads.

4. The compression ratio is very low—many are as low as 1—meaning there’s no compression. 5. It operates at a low speed but requires high power—resulting in high filtration efficiency.

As for cooling, the extruder also needs to be cooled. The filter unit requires even more thorough cooling.

The diameter of the six-hole plate is approximately 1.7 times that of the screw.

7. The filter mesh is typically around 50 mesh.

The rubber extruder, rubber filter extruder, and inner-tube filter extruder are used to remove impurities from rubber compounds. The die head is hinged and mounted on a flange on the machine body; it is unlocked via a worm‑gear mechanism, ensuring energy efficiency and effortless operation. The machine body incorporates helical water‑vapor channels that provide excellent temperature control, and it is equipped with thermocouples, temperature sensors, and a millivolt meter for precise temperature display. Both the screw and the liner are made of high‑quality alloy steel and undergo nitriding treatment, offering sufficient strength and outstanding wear resistance. The reducer employs involute cylindrical gear transmission, featuring a compact oil‑bath lubrication system that is lightweight and space‑efficient.