Packaging applications place immense radial loads on your system. Standard planetary gearheads force you to upsize—adding unwanted weight, space, and noise in addition to inaccuracy. DieQua’s PHCH Premium Planetary Servo Gearhead delivers maximum overhung load capabilities within a highly compact, high torque, accurate, and quiet drop-in component.

The High-Load Challenge in Packaging Applications

Packaging OEMs face demanding operating conditions that rapidly degrade standard components:

  • High Radial Stress: Heavy belt-and-pulley systems and direct-drive mechanisms place constant bending stress on the output shaft.

  • Continuous Washdowns: Exposure to harsh cleaning agents requires robust environmental sealing.

  • Acoustic Restraints: High-speed planetary designs can become a primary source of factory noise

Instead of over-sizing the entire gearhead to handle these loads, a smarter approach would be to engineer specialized internal bearing geometry.

Engineering Advantages of the PHCH Series

The PHCH Series is engineered specifically as a high-torque, inline helical gear reducer that solves these specific integration and reliability pain points.

1. Best-in-Class Overhung Load (OHL) Capacities

Unlike standard gearheads that utilize traditional ball bearings, the PHCH Series incorporates heavy-duty taper roller bearings. This internal layout delivers radial load capacities ranging from 3,600 N up to 11,380 N, alongside axial capacities up to 8,830 N. This allows design engineers to manage high bearing stress reliably without moving to a larger frame size.

2. High-Precision Helical Planetary Gearing

The series utilizes a caged planet carrier paired with a premium helical planetary gear set. Helical gears offer a continuous tooth engagement profile compared to straight spur gears, resulting in exceptionally high torque density, ranging from 37 Nm to 600 Nm, and quiet drive operation.

3. True Drop-In Integration Flexibility

Modifying an existing machine footprint to accommodate a new gearhead is costly and time-consuming. The PHCH Series features a modular design with a square servo interface accommodating motor frames from 60 mm through 220 mm. It delivers standard mounting compatibility, making it seamless to drop into existing configurations.

4. Zero-Maintenance, Wash-down Ready Enclosure

To ensure a long service life in demanding factory environments, every unit is:

  • Factory-Sealed for Life: Pre-filled with premium synthetic lubricant, removing maintenance requirements from the end-user.

  • IP65 Rated Protection: Fully sealed enclosure protects internal components against water ingress during washdown procedures.

Technical Configuration Overview

  • Standard Sizes: Available in 4 distinct sizes (70, 90, 120, and 155)

  • Output Shaft Diameters: Ranging from 16 mm through 40 mm

  • Ratios Available: 8 single-stage and up to 13 two-stage reduction ratios

Frame Size (mm) 70, 90, 120, 155
Ratio

8 – single stage; 

13 – double stage
Nominal Input Speed (rpm) 3,000 – 4,000
Max Input Speed (rpm) 5,000 – 8,000
Backlash (arc-min)

4-8 single stage; 

6-10 two stages


Select the Right Fit for Your Next Project

Balancing high radial loading with tight space constraints shouldn’t compromise your design. The PHCH series provides the optimal internal bearing configuration to give engineers the freedom to design compact, high-throughput packaging systems that stand up to real-world industrial environments.

To review full dimensions, torque ratings, and exact ratio options, download product documentation or contact our application engineering team today.