Single Belt Oven Conveyor Alignment

Project Information

Inspection Process:

Define the centerline of the oven conveyor structure. Utilize the oven centerline and gravity as the primary alignment reference for

all analysis and adjustments. Align the oven structure from end to end with respect to the oven centerline. Inspect all guide rollers

and vertically align with respect to gravity. Set the center point of the drive and tension drum to the oven centerline. Set the drive

and tension drums perpendicular to the oven centerline and level to gravity per the true rotational center of the drum. Complete a

surface inspection of the drive and tension drums and provide a report detailing the surface contour and drum diameters at the

inspected locations. Provide the site with alignment recommendations and/or corrections… monitor all adjustments and document

the final alignment of each component with respect to the established alignment reference.

Project Description:

Inspection and analysis of all components of a single belt oven conveyor system. Provide a final report including a graphical

representation of the conveyor system and all final alignment data.

Report Contents:

Section I : Oven Alignment

Overview & Drum to Drum Dimension

Section II : Drive Drum Alignment Data

Final Horizontal & Vertical Alignment, Drum Surface Contour Analysis, Diameter Analysis and Centerline Alignment

Section III : Tension Drum Alignment Data

Final Horizontal & Vertical Alignment, Drum Surface Contour Analysis, Diameter Analysis and Centerline Alignment

Section IV : Guide Roller Alignment

Final Vertical Alignment Data

Origin Metrology Group, LLC | (888) 214 2573 | www.originmetrology.com

Single Belt Oven Conveyor SystemInspection Overview


Left Side

Right Side

Driven End

Drive End

Single Belt Oven Conveyor SystemDrum to Drum Dimension

View Reference: Isometric



Final Alignment : Drive DrumVertical & Horizontal Alignment in Reference to Conveyor Centerline


Left Side

Right Side

0.000”

Reference0.010” High

0.007” Towards the Oven


Final Alignment : Drive DrumSurface Contour Inspection & Analysis

View Reference: Side

Isometric View


Final Alignment : Drive DrumDiameter Analysis


Left Side

Right Side

39.989”

39.976”

40.019”

40.019” 39.976” 39.989”

0.030”


Final Alignment : Drive DrumDrum Centerline to Oven Centerline

View Reference: Plan View

0.029”

Left of Centerline

Drum Center

Oven Centerline

Left Side

Right Side

Oven Centerline

** 0.007” Off Center from Drive Drum Center to Tension Drum Center


Final Alignment : Tension DrumVertical & Horizontal Alignment in Reference to Conveyor Centerline


0.000”

Reference

0.008” Low

Left Side

Right Side

0.000” Perpendicular to Oven Centerline


Final Alignment : Tension DrumSurface Contour Inspection & Analysis

View Reference: Side

Isometric View


Final Alignment : Tension DrumDiameter Analysis


Left Side

Right Side

39.992”

39.957”

39.993”

39.993” 39.957” 39.992”

0.001”


Final Alignment : Tension DrumDrum Centerline to Oven Centerline

View Reference: Plan View

.036”

Left of Centerline

Drum Center

Oven Centerline

Left Side

Right Side

Oven Centerline

** 0.007” Off Center from Drive Drum Center to Tension Drum Center

Single Belt Oven Conveyor SystemGuide Roller Alignment



* All guide rollers (depicted in green) were leveled in

reference to gravity within +/- 0.020” which is in reference

to the centerline of the drive and tension drums.

* Due to lack of adjustment… no consideration was given

to horizontal alignment.

Project Comments & Recommendations

Inspection Notes

The oven conveyor system center line was established and all components were inspected with respect to the oven center line

and gravity. The oven structure was aligned straight (+/- 0.075”) from end to end at each vertical support frame. The inspection of

the drive and tension drums revealed inconsistent surfaces, resulting in surface contour and drum diameters that exceed the

recommended allowable tolerance of +/- 0.005” guide a steel belt. The data was provided to project management and the

recommendation to replace the drums was made. The decision was made to proceed with the alignment and document all

measurement data. The final alignment of each component is detailed within this report.

The final inspection of the oven conveyor system utilized the oven centerline and gravity as the primary alignment reference. Both

drums were set level to gravity and perpendicular to the oven center line. Each drum center point was adjusted to the oven

centerline. Drum center to center was set within 0.053”. All guide rollers (with available adjustment) were vertically aligned with

respect to gravity and parallel to the drum centerlines. All mechanical adjustments were verified and final alignment data was and

has been provided for review.

Recommendations

To increase the run-time efficiency of the steel belt conveyor system additional consideration should be given to the following

items: (1) the allowable tolerance of the drum surface contours (2) discrepancies of the diametrical dimensions of the drive and

tension drums. The drive drum shows an end to end diametrical difference of 0.030” and a surface profile range of -0.047” to

0.048” which exceeds the allowable tolerance and may lead to tracking issues during operation. The tension drum shows an end

to end diametrical difference of 0.001” and a surface profile range of -0.082” to 0.044” which exceeds the allowable tolerance and

may lead to tracking issues during operation.

OMG recommends the addition of scribe marks on the drive and driven drum supports once the operational position of each drum

has been achieved. This will provide a baseline for proper alignment should any repairs become necessary without the benefit of

precision alignment support.


Reviewed By: AWF

Engineering

Single Belt Oven Conveyor Alignment