Shaft Model Indexer (DS)
Details:
The Sango DS series shaft model cam indexer is a compact indexing drive with a solid output shaft. It suits applications where the indexer drives a coupling, sprocket, gear, pulley or dial hub rather than a flange. It is the most common choice for conveyor indexing and for machines that need intermittent motion transmitted to another part of the line.
A precision globoidal cam and preloaded roller turret convert constant input speed into accurate stop and go motion, with positive locking at every dwell and no backlash. Output and input shaft extensions can be configured to suit your drive layout.
How the Shaft Model Indexer (DS) Works
\. How It Works
The input and output shafts sit at a right angle. The globoidal cam on the input shaft drives rollers on a turret fixed to the output shaft. As the input turns at constant speed, the output shaft rotates one index, then stops and locks during the dwell. The locked output needs no brake to hold position.
Because the output is a keyed shaft, you can drive almost any mechanism. Common choices are sprockets for chain conveyors, timing pulleys, gears, star wheels, or a dial hub with a clamp collar. One indexer can drive a mechanism mounted away from the drive or stay synchronized with other shafts in the machine.
For a connection with no backlash, bore the mating hub, gear or coupling to a tolerance of +0.015/0 mm on the output shaft. Station counts, drive angles from 90° to 330°, and the motion curve are all set by the cam to match your cycle.
Output structures available
Why machine builders specify it
Six characteristics that come from the cam profile rather than from control software.
Keyed Output Shaft
Couple sprockets, pulleys, gears, star wheels or dial hubs directly to a precision machined, keyed output shaft.
Built for Conveyor Indexing
Well suited to intermittent chain, belt and pallet conveyors, where the product must stop, dwell for a process and advance one pitch at a time.
Flexible Shaft Configuration
Output and input shafts can extend on one or both sides on request. This makes it easy to drive two mechanisms or add a pulley and cam switch.
Zero Backlash at Every Stop
Preloaded rollers keep constant contact with the cam, so the output holds its position firmly through every dwell.
Strong Radial Load Support
Heavy duty bearings on the output shaft absorb belt tension, chain pull and gear separating forces without losing accuracy.
Compact and Easy to Integrate
A small cast housing with several mounting faces fits inside machine frames and pairs with gear motor, clutch and sensor packages.
Models and load ratings
Four output styles across 31 frame sizes. Pick the output first, then size on torque and moment.
Shaft Model Indexer (DS) Performance Specifications
Shaft Model Indexer (DS) models engineered for high dynamic rigidity, zero-backlash positioning, and extended bearing life.
| Model | Allowable Torque (N·m) | Allowable Moment (N·m) | Accuracy (arc sec) | Weight (kg) |
|---|---|---|---|---|
| 45DS | 16 | 0.7 | ±60 | 7 |
| 60DS | 20 | 1.5 | ±45 | 13 |
| 70DS | 25 | 2.2 | ±30 | 18 |
| 80DS | 30 | 2.2 | ±30 | 32 |
| 110DS | 35 | 5.4 | ±30 | 65 |
| 140DS | 45 | 8.4 | ±30 | 90 |
| 180DS | 60 | 14.7 | ±30 | 220 |
Six mounting orientations
The same frame can be bolted base-down, wall mounted or inverted, and the motor can sit above, behind or in line. Quote the code with your order so the unit ships with the oil level and breather set for that orientation.
Vertical Output Upward (Standard Dial Table)
Standard turntable orientation with dial plate mounted horizontally on top.
Vertical Output Downward (Inverted Mount)
Overhead hanging dial configuration for robotic cell ceilings.
Horizontal Output Right
Input shaft horizontal, output shaft extending horizontally to the right.
Horizontal Output Left
Input shaft horizontal, output shaft extending horizontally to the left.
Wall Mount Output Forward
Housing mounted against a vertical machine column, output extending forward.
Wall Mount Output Rearward
Housing mounted against machine frame, output facing inward.
Production & Service Procedure
From 5-axis globoidal cam grinding to cleanroom assembly and 100% full-duty load validation, our ISO-certified production procedure ensures unmatched operational longevity.
What happens next
Application Review & Sizing
We study your mass, radius, cycle time, dwell time, and process forces to compute torque.
Custom Cam Profile Design
Index angle, dwell angle, and acceleration curve (Modified Sine/Cycloidal) engineered to your kinematics.
CNC Cam Grinding & Heat Treatment
Forged alloy steel cams machined on 5-axis grinders, carburized to HRC 58-62.
Cleanroom Assembly & Preload
Zero-backlash needle rollers preloaded by hand into rigid cast iron housings.
100% Zeiss CMM & Dynamic Run Testing
Every unit undergoes positional accuracy verification before shipment.
Different Transmission Device
Explore our complete range of synchronized cam mechanisms and motion handlers.
Indexing Drives
Oscillating Drives
Roller Drives
Oscillate Handler
Index Handler
Parts Handler
Industries That Use Cam Indexing Drives
\. Applications H2: Machines That Use the Shaft Model Indexer The DS series drives intermittent motion wherever power passes through a shaft. Typical uses include cartoning and blister packaging machines, bottle filling and capping star wheels, eye drop and liquid filling lines, chain and pallet conveyors, printing and labeling machines, food processing lines, mask and nonwoven production, and assembly machines that transmit motion through gears or sprockets. Send us your pitch, cycle rate and load, and we will recommend the size, index angle and motor package.
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Frequently Asked Questions?
Everything you need to know about our cam indexers, lead times, warranties and engineering services.
