Exit rolls
Guide the board out
A pair of rollers driven by a variable-speed motor guides stock from the moulder toward the receiving module.
Doucet MR
DOUCET MACHINERIES
MR Return Conveyor for Moulders
Doucet MR is a moulder-specific return conveyor family for fast end-to-end facing applications. MR-8, MR-12 and MR-16 use variable-speed exit rollers, an adjustable ledge aligned with the moulder fence, gravity transfer onto lateral belts and a dedicated return conveyor to support one-operator operation.
MR-8 / MR-12 / MR-16up to 80 ft/min application feed rate48" receiving width12" return widthboards up to 192"one-operator workflow
Production problem
Fast moulder feed creates a continuous outfeed stream that otherwise requires repeated material handling at the discharge end.
Machine mechanism
Boards leave variable-speed exit rollers, drop by gravity to transfer belts below the ledge, then side-shift to the return rollers.
Model logic
MR-8, MR-12 and MR-16 change receiving-module length and maximum supported board length while sharing the 48-inch receiving width and 12-inch return width.
MR-8 / MR-12 / MR-16
up to 80 ft/min application
48" receiving width
12" return width
adjustable fence-line ledge
accumulation-table option
Start with the production problem
Keep pace with long-stock moulder output without building a second manual handling station at outfeed.
MR is built for fast end-to-end facing on moulders, returning long stock to the loading side so one operator can manage the cell.
Alignment
Support against the process line
An adjustable ledge continues the moulder-fence line as stock enters the receiving table.
Gravity transfer
Drop below the ledge
Once clear of the exit rollers, the stock is released by gravity onto the transfer belts below the ledge.
Return
Side-shift and return
Transfer belts move the board laterally to the return rollers for delivery back toward the operator.
Application fit
Best fit: fast moulder cells processing long mouldings or boards end to end.
MR supports moulder applications up to 80 ft/min, three board-length classes, one-operator return and optional accumulation.
Strong fit
Moulders
Dedicated host-machine scope for moulder applications.
Strong fit
End-to-end facing
Built around fast end-to-end facing workflows on moulders.
Strong fit
Long stock
MR-8/-12/-16 support maximum board lengths of 96, 144 and 192 inches respectively.
Workflow
One-operator cell
The return path brings stock back to support one-operator moulder operation.
Option fit
Accumulation needs
The accumulation table can be configured on the left side of the return or at its end.
Shared geometry
48" receive / 12" return
All three MR models share a 48-inch receiving width and 12-inch return-roller width.
Select the MR model from board length backwards
MR-8, MR-12 and MR-16 are tied to receiving-module and board-length limits.
Model selection is based on the actual receiving-module length, maximum board length, moulder interface and accumulation requirements.
Define the moulder
Manufacturer/model, fence line, feed height, total length and actual operating feed rate.
Define the stock
Minimum/maximum board length, width, thickness, weight and profile family.
Match board length
96, 144 or 192 inches maximum according to MR-8, MR-12 or MR-16.
Close the return length
Return-roller length is proportionate to the length of the paired moulder.
Add accumulation / mobility
Choose accumulation-table location and caster/quick-release configuration if required.
Machine architecture / work cycle
Exit rollers → adjustable ledge → gravity drop → lateral belt transfer → return rollers.
Boards leave the exit rolls, remain aligned on the adjustable ledge, drop by gravity to the transfer belts and move laterally to the return rollers.
Guide
1 — Exit rolls
A pair of variable-speed motor-driven rollers guides boards from the moulder.
Support
2 — Adjustable ledge
The ledge supports material in continuation of the moulder fence.
Transfer start
3 — Gravity drop
Stock clears the feed rollers and drops by gravity below the ledge.
Return
4 — Belt side-shift / return
Transfer belts move stock to the 12-inch-wide return rollers.
Exit-roll detail
Variable-speed exit rollers guide the board toward the receiving module.
A pair of variable-speed motor-driven exit rollers guides stock from the moulder into the receiving module.
Exit-roll architecture
Two exit rolls with variable-speed drive.
The exit rolls guide stock into the receiving section before the ledge and gravity-transfer sequence.
The 80 ft/min value is the application feed-rate ceiling; it is not a separately specified exit-roll or return-conveyor speed.
Technical framework
MR family technical data.
Shared geometry and model-specific receiving lengths stay separate.
| Field | MR value |
|---|---|
| Host machine | Moulders |
| Application feed rate | Up to 80 ft/min |
| Models | MR-8 / MR-12 / MR-16 |
| Receiving width | 48" |
| Return-roller width | 12" |
| Return length | Proportionate to paired moulder length |
| Exit rolls | Pair of rollers driven by variable-speed motor |
| Receiving support | Adjustable ledge continuing the moulder fence |
| Transfer method | Gravity release to transfer belts below the ledge, then lateral shift to return rollers |
| MR-8 | 60" receiving module; boards up to 96" |
| MR-12 | 84" receiving module; boards up to 144" |
| MR-16 | 120" receiving module; boards up to 192" |
| Accumulation table | Left side of return conveyor or at the end |
| Quick-release return on casters | Available |
| Main module on casters | Available |
Model capacity
Three receiving lengths. Three maximum board lengths.
All three MR models retain the 48-inch receiving width and 12-inch return-roller width.
| Model | Receiving-module length | Maximum board length | Receiving width | Return width |
|---|---|---|---|---|
| MR-8 | 60" | 96" | 48" | 12" |
| MR-12 | 84" | 144" | 48" | 12" |
| MR-16 | 120" | 192" | 48" | 12" |
Choose the model from the actual long-stock mix and moulder layout, not only the occasional longest board.
Adjustable ledge
Continue the moulder fence line into the receiving table.
Incoming boards are supported by an adjustable ledge positioned in continuation of the moulder fence.
Moulder interface
The ledge supports board alignment before gravity transfer.
Ledge position is established around the paired moulder and the installed material-flow path.
Final ledge position is part of the moulder-interface setup for the supplied configuration.
Accumulation table
Configure accumulation beside the return conveyor or at its end.
The accumulation table can be located on the left side of the return conveyor or at its end.
Accumulation option
Choose the location around operator flow and downstream handling.
Left-side and end-of-return locations are both supported MR configurations.
Select the accumulation location together with the return layout and operator side.
Operating framework
Match application feed, exit-roll guidance and return geometry.
MR keeps the application feed rate distinct from the variable-speed exit-roll function and model-specific conveyor geometry.
Application feed
Up to 80 ft/min
Suitable application feed rate for MR.
Exit guidance
Variable-speed exit rolls
A motor-driven pair of exit rollers guides stock into the receiving module.
Return geometry
Length follows the moulder
Return-roller length is proportionate to the paired moulder length.
Options / custom configuration
Configure accumulation and mobility around the cell.
Available MR configurations include two accumulation-table locations plus caster and quick-release return options.
Configuration
Accumulation table — left
Accumulation table can be located on the left side of the return conveyor.
Configuration
Accumulation table — end
Accumulation table can alternatively be located at the end of the return conveyor.
Mobility
Quick-release return on casters
Quick-release return-section caster configuration is available.
Mobility
Main module on casters
Caster mounting is available for the main module.
Ownership / changeover
Manage the MR around moulder length, fence alignment and stock family.
Keep the model, fence/ledge interface, transfer surfaces and mobility configuration documented with the installed cell.
Configuration
Model record
Keep MR-8/-12/-16 identity tied to the actual receiving module and board-length range.
Interface
Fence / ledge relationship
Document the installed moulder interface and approved ledge position.
Ownership
Transfer / return surfaces
Exit rollers, transfer belts and return rollers are the primary material-flow elements.
Safety
Qualified service
Drive, pneumatic and electrical service follows installed-machine procedures and qualified workplace practices.
Production-cell integration
The moulder defines the return length and alignment relationship.
Return-roller length is proportionate to the paired moulder, so final cell geometry is defined around the host machine.
Moulder outfeed
Stock exits through the variable-speed guide rollers.
Ledge support
The board enters the receiving table on the adjustable fence-line continuation.
Gravity release
Stock drops below the ledge after clearing the exit rolls.
Lateral transfer
Belts shift the board toward the 12-inch return rollers.
Return / accumulate
Stock returns to the operator or configured accumulation location.
Business-case framework
Measure moulder outfeed handling instead of applying a generic one-operator ROI.
Build the project case from actual shift pattern, board mix, operator travel and moulder waiting time.
Existing state
Existing outfeed labor
Measure time spent receiving, carrying and staging long stock.
Flow
Moulder waiting
Record idle time caused by outfeed congestion or operator travel.
Production basis
Board-length mix
Separate 8-, 12- and 16-foot-class stock and shorter production.
Business case
Configured MR case
Use the selected model, real feed rate and accumulation method to model the project.
Application data package
Send the moulder and real long-stock mix before selecting MR-8, MR-12 or MR-16.
These inputs close receiving length, return length, ledge interface, accumulation layout and mobility requirements.
Host machine
Moulder
Manufacturer/model, total length, fence, pass height, feed rate and outfeed direction.
Workpiece
Stock envelope
Min/max L × W × T, weight, profile family and representative board mix.
Layout
Return workflow
Operator side, desired return endpoint and accumulation requirements.
Integration
Cell requirements
Available floor space, caster/quick-release needs, electrical/air service and commissioning scope.
MR FAQ
Key questions for model selection and application fit.
Model capacities and application-feed terminology remain distinct.
What is the Doucet MR?
A moulder-specific return conveyor family designed for fast end-to-end facing applications and one-operator material return.
Which MR models are available?
MR-8, MR-12 and MR-16.
What application feed rate does MR support?
MR is suitable for applications with a feed rate up to 80 ft/min.
How should the 80 ft/min rating be interpreted?
It is the suitable application feed rate, not a separately specified receiving-conveyor speed.
What is the receiving width?
48 inches on all MR models.
What is the return width?
The return rollers are 12 inches wide on all MR models.
How long are the return rollers?
Return-roller length is proportionate to the length of the paired moulder.
What is the MR-8 capacity?
A 60-inch receiving module suitable for boards up to 96 inches long.
What is the MR-12 capacity?
An 84-inch receiving module suitable for boards up to 144 inches long.
What is the MR-16 capacity?
A 120-inch receiving module suitable for boards up to 192 inches long.
Where can the accumulation table be placed?
It can be located on the left side of the return conveyor or at the end.
MR application review
Match the return system to your moulder and long-stock mix.
Send the moulder length, feed rate, board envelope, operator side and accumulation requirements.