Pin-type rubber hose production line

Model XJ-75 XJ-90 XJ-120 Screw Diameter (mm) 75 90 120 Length-to-Diameter Ratio 14:1 14:1 14:1 Motor Power (kW) 37 55 110 Screw Speed (rpm) 55 50 45 Production Capacity (kg/h) 80–120 100–300 300–600 Rubber hoses have a wide range of applications. Fabric-reinforced rubber hoses offer high strength and excellent flexibility, making them suitable for use as flexible pipelines for water supply, oil transport, gas delivery, and chemical processing. Hebei Shuangda Rubber & Plastic Machinery Co., Ltd. manufactures pin-type cold-feed rubber extruders that incorporate advanced technologies from British rubber machinery. These machines feature rapid heating and cooling, an advanced temperature control system, and are equipped with specialized pin-type barrel screws, enhancing material plasticization and mixing performance. When paired with hose dies, water tanks, traction units, winding systems, or cutting devices, they can produce single-layer or double-layer hoses, braided hoses, and more. The entire production line delivers stable performance and high control accuracy. Workflow of the Rubber Hose Extrusion Line 1. Rubber is processed through internal and open mixing. During this stage, raw rubber and additives are thoroughly blended, resulting in improved stability and aesthetic quality of the final hose product. 2. Extrusion by the rubber extruder. The rubber sheet produced during open mixing is formed into strip-shaped rubber strips. These strips are then fed into the rubber extruder to form the inner tube of the hose, ensuring precise dimensions. 3. Traction—serves to convey and transport the hose. 4. Braiding—after being pulled by the traction unit, the inner hose passes through a braiding machine. The braided hose is then conveyed to the next process step, where the braid density can be adjusted according to the pressure requirements of the hose. 5. Traction—this step is similar to Step 3. 6. Extrusion of the outer hose layer. Similar to Step 1, the braided inner hose enters the rubber extruder via a T-shaped die head. The finished hose blank emerges from the opposite side of the T-die. 7. Traction and automatic cutting—finished hose blanks are automatically cut to predetermined lengths. 8. Core insertion—insertion and shaping of the core. 9. High-pressure vulcanization—hoses fitted with cores are placed into a high-pressure vulcanizing tank for curing. 10. Product removal and core extraction. 11. Finished product output.

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Pin-type rubber hose production line

Model number	XJ-75	XJ-90	XJ-120
Screw diameter mm	75	90	120
Length-to-diameter ratio	14:1	14:1	14:1
Motor power kW	37	55	110
Screw rotation speed	55	50	45
Production rate kg/h	80-120	100-300	300-600

Rubber hoses have a wide range of applications. Fabric-reinforced rubber hoses offer high strength and excellent flexibility, making them suitable for use as flexible pipelines for water supply, oil transport, gas delivery, and chemical processing.

The pin‑type cold‑feed rubber extruder manufactured by Hebei Shuangda Rubber & Plastics Machinery Co., Ltd. incorporates advanced technology from British rubber‑processing equipment, offering rapid heating and cooling, a state‑of‑the‑art temperature‑control system, and a dedicated pin‑type barrel and screw that enhance material plasticization and mixing. Paired with a hose die head, water tank, traction unit, and winding or cutting device, it can produce single‑layer or double‑layer hoses, braided tubes, and more. The entire production line delivers stable performance and high control accuracy.

Working Process of a Rubber Hose Extrusion Line

1. The rubber undergoes both internal mixing and open‑mill processing. During these steps, the raw rubber and compounding ingredients are thoroughly blended, resulting in a hose with improved stability and enhanced appearance.

2. Extrusion using a rubber extruder. The milled rubber sheet has been formed into strip‑shaped ribbons. Extrusion through a rubber extruder enables the production of the inner tube of a rubber hose, thereby defining its dimensions.

3. It is driven by traction and serves to convey and transport materials.

4. Knitting and braiding. The inner tube of the hose, conveyed by the traction machine, is knitted by the knitting machine and then transported to the next process via the discharge port. The knitting density can be adjusted according to the pressure rating of the hose.

5. Traction. This step is the same as the third step.

6. Extrude the outer rubber tube. This step is similar to the first. The inner rubber tube, knitted by the knitting machine, passes through a T‑shaped die and enters the rubber extruder; at the opposite side of the die, the finished rubber‑encased tube blank emerges.

7. Pull‑in conveying and automatic tube cutting. The finished blanks are conveyed by a puller, and the system automatically trims them to the preset length.

8. Core assembly. Core assembly and shaping.

9. High-pressure vulcanization. Place the core‑assembled hose into a high-pressure vulcanization autoclave for vulcanization.

10. Remove the product core.

11. Produce the finished product.