Precision Chain-On-Edge Conveyor Design

Nearly 35 Years of Proven Chain-On-Edge Conveyor Innovation

With close to 35 years of continuous development and refinement, Precision Conveyor Technologies has delivered a Chain-On-Edge Spindle Conveyor system trusted by OEMs, system integrators, and end users around the world. Engineered for the demanding requirements of finishing applications, our design is known for its performance, reliability, and versatility.

These systems efficiently move a wide range of parts through painting and coating processes—with speed, stability, and precision.

Key Benefits:

Uniform, transfer-efficient coating
Supports automatic loading, masking, and unloading
Capable of spinning tall, heavy, and unbalanced parts
Precision indexing for high-throughput operations
Low-maintenance design with self-cleaning V-load wheels

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Design Details - SD Series

Precision Conveyor Technologies’ SD Series Conveyors are built for lighter parts that still demand precise control. Ideal for coating, indexing, and automated handling of small to mid-size components, the Standard Duty series offers proven durability, smooth motion, and a simplified design that keeps your line running with minimal maintenance.

	1.0" STD. SERIES	1.5" STD. SERIES	2.0" STD. SERIES	3.0" STD. SERIES
A	6"	7"	7"	9"
B	5"	6"	6"	8"
C	0.50"	0.75"	0.75"	1.00"
L	5 LBS.	8 LBS.	15 LBS.	30 LBS.

ITEM	NAME	DESCRIPTION
1	Fixture Ready Spindle Tops	Each spindle includes a machined interface to connect with your part fixture. Choose from standard designs or let us adapt to your existing tooling.
2	Track Slot Closure Plate	Shields internal components from overspray and debris—reducing wear and extending system life.
3	Precision Guide Bars	Cold-finished steel guide bars support the upper bearings to ensure consistent spindle motion and long bearing life.
4	Dual Upper Bearings	Two ball bearings at the top of each spindle provide stable, wobble-free motion for parts up to 30 lbs.
5	Spindle Grease Point/Anti-Lift Retainer	Each spindle includes a threaded zerk fitting designed to provide a fast, and effective way to maintain lubrication within the rotating spindle; this part also serves as a retainer to hold the spindle on the pin.
6	Customizable Rotation Interface	The spindle rotation point can be configured as a spocket, sheave, detented indexer, or even non-rotating depending on your process needs.
7	Hardened Spindle Pin with Grease Pocket	Hardened steel spindle pins run through the chain and above the track to support every spindle from within, providing a strong mounting point; Grease pockets allow for consistent rotation and lubrication of all spindles.
8	Solid Pin Conveyor Chain	Our custom heavy-duty chain resists stretch, tracks accurately, and supports smooth indexing even across long systems.
9	V-Grooved Stabilizing Wheels	Each wheel includes dual ball bearings and a self-cleaning groove profile—delivering smooth, low-friction tracking and reliable part positioning.
10	Cold Finished V-Bar Guide	Stabilizing wheels ride along a precision-ground V-bar, keeping the chain aligned and the conveyor running smoothly over time.
11	Modular, Enclosed Track	Laser-cut steel track is built to tight tolerances and designed for simple bolt-up installation and expansion.

Design Details - HD Series

The HD Series from Precision Conveyor Technologies is our most robust Chain-On-Edge (COE) solution—designed specifically for coating, curing, and handling large, heavy, or tall parts with unmatched stability and motion control.

Whether you’re moving truck wheels, castings, pipe couplings, or aerospace hardware, the HD Series delivers the load capacity, spindle rigidity, and automation readiness your operation demands.

	2.0" HD SERIES	3.0" HD SERIES	4.0" HD SERIES
A	7"	9"	11"
B	6"	8"	9"
C	0.75"	1.00"	1.25"
L	30 LBS.	100 LBS.	200 LBS.

ITEM	NAME	DESCRIPTION
1	Fixture Ready Spindle Tops	Each HD Series spindle includes a precision-machined connection point for your part fixture. Choose from standard options or let us adapt to your existing tooling.
2	Track Slot Closure Plate	Protects internal components from overspray, dust, and debris—reducing wear and extending system life.
3	Precision Guide Bars	Cold-finished steel bars provide a rigid, low friction surface for the upper bearings, ensuring stable motion and prolonged bearing life.
4	Dual Upper Bearings	Dual bearing assemblies to eliminate spindle wobble and ensure smooth, consistent part rotation—even under heavy side loads.
5	Customizable Rotation Interface	The spindle rotation point—shown here with a sheave—can also be configured as a sprocket, a detented indexer, or even non-rotating for fixed-part applications.
6	Heavy Duty Tapered Roller Bearing	Located at the top of the spindle, this bearing handles extreme thrust and radial loads—ideal for tall, unbalanced, or high-mass parts.
7	Solid Pin Conveyor Chain	Exclusive to Precision Conveyor, our solid pin chain handles long runs, high loads, and extreme duty cycles without elongation.
8	Lower Rotation Bearing Support	A secondary bearing at the spindle base provides additional support during rotation, ensuring smooth, controlled motion under heavy load.
9	V-Grooved Stabilizing Wheels	Each guide wheel features dual ball bearings and a self-cleaning profile to ensure low-friction tracking, load support, and long service life.
10	Cold Finished V-Bar Guide	The stabilizing wheels ride along a precision-ground V-bar to maintain perfect chain alignment over time—even under full load.
11	Modular, Enclosed Track	Laser-cut steel track segments are built to tight tolerances for easy bolt-up assembly and reliable system scalability.