Secondary Belt Cleaners
Remove fine residual carryback after the primary cleaning stage with Martin® Engineering secondary belt cleaners supplied and supported by Oreflow.
REMOVES RESIDUAL CARRYBACK
Targets fine material remaining after the primary cleaning stage.
POSITIONED ON THE RETURN SIDE
Cleans the belt after it leaves the head pulley at discharge.
SUPPORTS STAGED CLEANING
Works with a primary cleaner for more complete carryback control.
Secondary Cleaning for Residual Carryback
Oreflow is an authorised Australian distributor of Martin® Engineering belt cleaning solutions for mining, mineral processing and bulk materials handling conveyors.
A secondary belt cleaner, also commonly called a secondary belt scraper, removes the finer residual carryback that remains after the primary cleaning stage. It is generally installed on the return side of the conveyor as the belt leaves the head pulley, although the correct mounting position depends on the cleaner design, belt support, chute arrangement and available installation space.
The primary cleaner performs the main bulk-material removal at the head pulley. The secondary cleaner follows this stage to improve the cleanliness of the returning belt.
Martin Engineering Secondary Belt Cleaner Range
Oreflow supplies Martin Engineering secondary belt cleaners for different conveyor duties, belt widths, speeds and installation arrangements.
Use the table as an initial comparison only. Final selection should be based on the conveyor, material, belt condition and available mounting position.
Image | Product | Max Belt Speed | Max Belt Width |
| 900 fpm (4.6 m/s) | Up to 96 in (up to 2400 mm) | |
| 1500 fpm (7.5 m/s) | Up to 96 in (up to 2400 mm) | |
| 1500 fpm (7.5 m/s) | Up to 96 in (up to 2400 mm) | |
| 750 fpm (3.8 m/s) | Up to 72 in (up to 1829 mm) | |
| 900 fpm (4.6 m/s) | Up to 120 in (up to 3048 mm) | |
| 1200 fpm (6.1 m/s) | Up to 120 in (up to 3048 mm) | |
| 750 fpm (3.8 m/s) | Up to 96 in (up to 2400 mm) | |
| 1500 fpm (7.5 m/s) | Up to 96 in (up to 2400 mm) | |
| 1500 fpm (7.5 m/sec) | 8 to 96 inches (~400 to 2400 mm) |
How Secondary Belt Cleaners Work in a Staged System
A secondary cleaner is generally installed on the return side of the conveyor after the belt leaves the head pulley. Its blade or blades are held in controlled contact with the belt surface, removing finer residual carryback left after material discharge and the primary cleaning stage.
The tensioning system maintains blade contact as the cleaner operates and the blades wear. The appropriate pressure, alignment and mounting position depend on the cleaner design, belt support, chute arrangement and available installation space.
In demanding mining and bulk materials handling applications, a secondary cleaner commonly follows a primary cleaner. The primary cleaner removes the bulk layer of carryback while the belt is supported by the head pulley, before the secondary cleaner targets the finer material that remains.
Wet, sticky, fine or difficult materials may require more than one secondary cleaning stage. Where a conventional primary and secondary arrangement is unsuitable, Oreflow can also assess options from the specialty belt cleaner range.
Selecting a Secondary Belt Cleaner
The correct secondary cleaner depends on the conveyor arrangement, material conditions and cleaning result required. Key selection factors include:
- Belt width, speed and direction of travel
- Material type, moisture and residual carryback
- Belt condition and mechanical splice type
- Chute layout, belt support and available mounting space
- Blade configuration and tensioning requirements
- Whether an additional secondary cleaning stage is needed
Oreflow can assess these details to identify a suitable Martin Engineering cleaner and blade arrangement. Reversing conveyors, non-standard belt surfaces or restricted installation areas may require a specialised configuration.
Inspection and Replacement Blades
Secondary cleaners should be inspected for blade wear, consistent belt contact, correct tension and secure mounting. Material accumulation around the cleaner and changes in belt or splice condition should also be addressed where they affect cleaning performance.
Inspection and adjustment requirements vary by cleaner model and conveyor duty, so the applicable Martin Engineering manual should be followed rather than applying a single interval across every installation.
Oreflow supplies Martin Engineerig replacement blades for compatible cleaner systems.
Frequently Asked Questions
What is a secondary belt cleaner?
A secondary belt cleaner removes finer residual carryback that remains after the primary cleaning stage. It is generally positioned on the return side near the conveyor discharge.
Is a secondary belt cleaner the same as a secondary belt scraper?
Yes. “Secondary belt cleaner” is the preferred product term, while “secondary belt scraper” is commonly used to describe the same type of equipment.
Where is a secondary belt cleaner installed?
It is generally installed after the belt leaves the head pulley and before it continues along the return run. The exact position depends on the cleaner design, conveyor structure, belt support, chute arrangement and available space.
What is the difference between primary and secondary belt cleaners?
A primary cleaner removes the bulk of the material at the head pulley. A secondary cleaner follows it to remove finer residual carryback from the returning belt.
Can a conveyor use more than one secondary cleaner?
Yes. An additional secondary cleaning stage may be appropriate for wet, sticky, fine or difficult material, or where a higher standard of belt cleanliness is required. The available mounting space and method of returning removed material must also be considered.
How is a secondary belt cleaner selected?
Selection considers belt width and speed, material characteristics, carryback, belt condition, splice type, direction of travel, installation space, chute configuration, blade requirements and the required cleaning result.
Can secondary belt cleaners be used with mechanically spliced belts?
Some models and blade configurations can accommodate mechanical splices, but compatibility should not be assumed. The splice type, profile and condition must be assessed against the cleaner’s technical requirements.
Can Oreflow supply Martin Engineering secondary belt cleaners in Australia?
Yes. Oreflow is an authorised Australian distributor of Martin Engineering belt cleaners and can assist with product selection, technical information, supply and replacement blades.
Resources and Technical Information
Access technical documentation and product information to support specification, installation, and ongoing operation of Martin Engineering solutions.
Brochures and Catalogues
Product overviews and catalogues covering belt cleaners, transfer point solutions, air cannons, vibration systems, and safety products.
Technical Resources
Technical documentation including manuals, specifications, drawings, and replacement parts information.
Application Guides and Resources
Guidance and reference material to help address common conveyor challenges such as carry-back, spillage, dust, and material flow.
Specify a Secondary Cleaner for Your Conveyor
Provide your belt width and speed, material handled, splice type, available installation space and any relevant photos or drawings. Oreflow can assess the application and recommend an appropriate Martin Engineering secondary-cleaner configuration.
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