High-Performance Reducer for Plastic & Rubber Extruders
Product Overview
The ZLYJ series gearbox is a specialized gear transmission unit with an integrated thrust package, designed specifically for plastic and rubber extruder applications. Engineered to withstand high axial loads from the screw, this reducer delivers reliable, efficient power transmission in demanding extrusion processes.
Design Standards
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Designed in accordance with JB/T 8853-2001 technical specifications for “Cylindrical Gear Reducers.”
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Precision-engineered for optimal performance in plastic and rubber extrusion applications.
Key Features
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High-Strength Materials – Gears and shaft components are manufactured from high-strength alloy steel for exceptional durability.
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Advanced Gear Technology – Gears undergo carburizing, quenching, and grinding processes, achieving precision Grade 6 per GB10095-88.
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High Hardness – Axial thrust gear hardness reaches HRC 54–62 for superior wear resistance.
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Heavy-Duty Thrust Bearings – The front end of the hollow output shaft is equipped with large-sized thrust bearings to withstand the axial forces generated by the extruder screw during operation.
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Compact Design – Small machine footprint with high load-carrying capacity.
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Smooth & Quiet Operation – Precision ground gears ensure smooth transmission with low noise.
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High Efficiency – Optimized gear design minimizes energy loss.
Technical Specifications
| Parameter | Specification |
|---|---|
| Gear Type | Cylindrical gear with thrust package |
| Design Standard | JB/T 8853-2001 |
| Material | High-strength alloy steel |
| Gear Processing | Carburizing, quenching, grinding |
| Gear Accuracy | Grade 6 (GB10095-88) |
| Thrust Gear Hardness | HRC 54–62 |
| Output Shaft | Hollow type with large thrust bearings |
| Application | Plastic & rubber extruders |
Why Choose ZLYJ Series?
| Advantage | Benefit |
|---|---|
| Specialized for extruders | Integrated thrust package handles screw axial loads |
| High-strength alloy steel | Long service life in demanding conditions |
| Precision ground gears | Smooth, quiet, efficient operation |
| Grade 6 accuracy | Reliable performance with minimal backlash |
| HRC 54–62 hardness | Excellent wear resistance |
| Compact design | Saves installation space |
| High load capacity | Handles heavy extrusion applications |
Applications
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Plastic Extruders – Single screw extrusion lines
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Rubber Extruders – Rubber processing and compounding
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Extrusion Molding – Profiles, pipes, sheets, films
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Compounding & Pelletizing – Material blending and pellet production
Loading capacity sheet of ZLYJ and ZSYJ reduction gearboxes Type ZLYJ ZSYJ Spec △ △ △ △ △ △ * * * * * * * * * * * * 112 133 146 173 200 225 250 280 315 330 375 395 420 450 500 560 630 450 560 530 -8 -8 -10 -12.5 -12.5 -16 -16 -16 -16 -16 -16 -16 -16 -12 -20 -20 -20 -32 -57 -44 Normal input power(kw) n=1500rpm Ordinary reliable 15 22 30.8 39 55 75 82.5 116 171 _ 260 300 315 332 450 600 825 240 240 370 High reliable 10 15 18.3 30.8 45 60 67 75 116 207 207 240 250 266 350 550 675 200 220 315 Allowable output torque(N.m) Ordinary reliable 800 1165 1962 2484 4379 6568 7643 11822 17427 _ 26497 30475 32102 38599 50933 76433 105095 48917 87134 103694 High reliable 525 764 1165 1962 3583 5334 6306 7643 11822 21000 21096 24380 25478 33885 44566 70063 85978 40764 79873 88280 Recommended parameters of single-screw extruder machine reduction gearbox(Optional) Type Spec. Power/Kw Speed-Input Speed-Output Load torque/N.m Axial force/KN Screw diameter Length-Diameter Ratio ZLYJ 112-8 5.5 800 100 525 35 less than 35 25:1 113-8 6 800 100 764 39 50 25:1 146-10 11 1000 100 1050 54 55 25:1 173-10 18.5 900 90 1962 110 65 25:1 200-12.5 30 1000 80 3581 155 75 25:1 225-12.5 45 1000 80 5371 180 90 25:1 250-16 55 1120 70 7503 192 105 25:1 280-16 75 960 60 7643 258 110 25:1 315-16 85 960 60 13528 287 120 25:1 330-16 110 960 60 17528 360 135 25:1 375-16 132 960 60 21008 390 150 25:1 395-16 185 960 60 29442 400 160 25:1 420-16 160/220 960 60 31831 430 160/170 450-20 213 1000 60 40640 500 180 25:1 500-20 220 1000 50 42020 550 180 25:1 560-17 440 1000 50 84034 700 200 25:1 630-10 540 1000 50 103132 770 250 25:1 ZSYJ 450-32 200 1500 47 40635 500 165 25:1 560-57 220 1500 26 80802 700 190 25:1
