Product Overview

The SAZ87 DRN160L4 Heavy Duty Worm Reducer is a high-torque, right-angle drive engineered for demanding industrial machinery. Combining a robust helical-worm gear stage with a high-efficiency 15 kW motor, this geared motor delivers high mechanical power, minimal energy loss, and smooth speed reduction in continuous-duty applications.

Designed to meet rigid international dimensional and performance standards, the SAZ87 DRN160L4 offers low operational noise, high radial load capacity, and diverse mounting configurations-making it an excellent drop-in replacement and original equipment solution for conveyor systems, agitators, elevators, and packaging machinery worldwide.

Technical Specifications

Parameter	Specification Standard
Model Designation	SAZ87 DRN160L4
Gearbox Type	Helical-Worm Right-Angle Unit
Motor Power Output	15 kW (20 HP)
Energy Efficiency Rating	IE3 Premium Efficiency
Poles / Speed	4-Pole / 1450 RPM Class
Nominal Torque Output	Up to 1420 Nm
Output Shaft Options	Solid Keyed Shaft / Hollow Shaft with Keyway / Shrink Disc
Housing Material	High-Strength Cast Iron (FC200 / GG20)
Mounting Orientation	Foot-mounted, B5/B14 Flange-mounted, Shaft-mounted with Torque Arm
Ingress Protection Level	IP55 Standard (IP65 High-Dust/Moisture Optional)
Thermal Insulation Class	Class F (155 degrees Celsius Thermal Rating)
Duty Cycle	S1 Continuous Industrial Operation
Lubrication Type	Heavy-Duty Synthetic Gear Oil
Operating Ambient Temperature	-20 degrees Celsius to +40 degrees Celsius Range

Core Features & Mechanical Architecture

Heavy-Torque Transmission Structure
The hybrid helical-worm gear train combines the high torque capacity of worm gearing with the smooth efficiency of helical stages. Precision-ground steel worms paired with wear-resistant bronze wheels distribute mechanical loads evenly, protecting against severe torque surges.

Energy-Efficient IE3 Power System
The integrated 15 kW motor meets high efficiency standards, reducing power loss and operating temperatures during prolonged runs. It is fully compatible with Variable Frequency Drives (VFD) for precise operational speed management.

Rigid Cast Iron Frame & Advanced Sealing
The heavy-duty cast iron housing minimizes frame deflection under structural loads while dampening operating noise and vibration. Premium Viton double-lip oil seals shield internal gear components against ambient dust and moisture while preventing oil leakage.

Modular Mounting Versatility
Engineered to fit standard industrial spatial footprints. The unit seamlessly supports foot mounting, direct flange bolting, and hollow shaft installations with dampening torque arms to minimize equipment redesign costs.

Industrial Applications

Conveyor & Bulk Handling Systems: Belt conveyors, chain drives, bucket elevators, and heavy roller tables.

Mixing & Agitation Equipment: Chemical agitators, industrial liquid blenders, and continuous mixers.

Hoisting & Logistics Systems: Overhead traveling cranes, automated stacker cranes, and winch drives.

Packaging & Processing Machinery: Rotary filling machines, palletizers, and high-load sorting platforms.

Heavy Manufacturing Support: Auxiliary processing drives, mining feeders, and environmental treatment equipment.

Customizable Engineering Parameters

Electrical Customization: Custom motor windings for non-standard voltages and frequencies (220V, 380V, 400V, 415V, 460V at 50Hz or 60Hz).

Shaft Modifications: Customized shaft diameters, extended shaft lengths, keyway alterations, or stainless steel shafting.

Protective Surface Finishes: Multi-layer epoxy coatings designed for high-humidity, marine, or corrosive environments.

Special Accessories: Optional backstops, forced-cooling electric fans, and digital encoder feedback interfaces.

Quality Assurance & Export Protection

Pre-Shipment Inspection Protocols
Every drive unit undergoes rigorous quality testing before leaving the factory:

No-Load Electrical Test: Current draw, power factor, and rotational speed validation.

Acoustic & Vibration Analysis: Noise level checks to confirm precise gear meshing.

Pressure & Leakage Verification: Air-pressure shell checks to guarantee long-term seal integrity.

International Shipping Protection
Deep anti-rust oil treatment applied to exposed shafts and machined flange surfaces.

Heavy-duty, heat-treated, fumigation-free wooden crate packaging designed for long-distance ocean freight.

Internal shock-absorbing padding to shield mechanical components during transit.

FAQ

Q: What mounting options are standard for this worm reducer model?

A: The unit supports foot mounting, B5 or B14 flange mounting, hollow output shaft mounting with a keyway, shrink disc connections, and torque arm configurations.

Q: Can the motor electrical parameters be customized for localized power supplies?

A: Yes, motor windings can be manufactured to meet various voltage requirements ranging from 220V to 460V at either 50 Hz or 60 Hz operating frequencies.

Q: Is this drive system suitable for variable speed applications using an inverter?

A: Yes, the IE3 high-efficiency motor is designed for seamless operation with Variable Frequency Drives across a broad speed regulation range.

Q: What level of ingress protection is provided against harsh working environments?

A: The drive comes standard with IP55 protection against dust and water spray, with optional upgrades to IP65 or IP66 for severe dust or wet environments.

Q: Are CAD drawings available for engineering integration before placing an order?

A: Yes, complete 2D dimension drawings and 3D CAD STEP files can be provided to assist engineering teams in verifying fitment within machine designs.

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SEW SAZ87 DRN160L4 Heavy Duty Worm Reducer