click on image for larger view
Most tumble machine today use the same gun to process the barrel or basket full of parts. Parts that can’t be held because they are too small to process or high volumes of small parts are better and faster blasted when using batch loads. This is the function for all tumble basket or tumble barrel machines.
All Media Blast® Tumble Barrel Options are listed as machine options. While the option can't be purchased without purchase of a Media Blast sandblasting cabinet, this does allow the option to be added to any machine model, wet or dry, with and without pneumatic conveyor, for standard to ultra-fine abrasives.
The TB-4 is a production Tumble Barrel Option with a special rectangular sand blasting cabinet design and no manual blasting station. It can use the largest barrel size, 22-inch diameter, but also is available with smaller barrels installed for short part loads. Because it's a barrel and not a basket it has the fastest random part mixing for the fastest possible cycle time only requiring a single gun inside the barrel. The TB-4 uses two variable speed drives, two 1-1/2-inch diameter support shafts and two 22-inch diameter barrels standard for up to 50-pound part loading or one smaller barrel for smaller short loads. This unit normally has a cycle time of 20 minutes for 50-pound part loads.
This model is commonly used to remove heat-treated scale, prepare and clean parts for center less grinding application or surface finish parts in batch loads before assembly of knifes, hand tools and other parts requiring a uniform finish.
Two, (2), TB-3 machines with a total of 880 sq.ft. of filter area will produce more part volume per hour than the TB-4 model. Because the part load protects the barrel during operation, the TB-4 unit will not be able to protect barrel screen life when processing short or small part loads. Remember to consider how the unit will be operated - if you have many short loads, it is suggested you have one of the smaller barrels installed on the TB-4 when first purchased.
You can also purchase the TB-4 less standard dust collector for operation using and automatic timed reverse pulse cleaning free standing dust collector like the Media Blast 880 sq.ft. seen in the dust collector section of this website.
Pro Tip: If the TB-3 and TB-4 were mixing cake batter they would make more cakes per day than a TB-5 Master using a basket.
If you’re looking for blast cabinet parts or the user manual for this Mediablaster®, contact us here.
NOTE: Standard Features are included with every model. Available Options can be added at additional cost and may require custom machine work, which may increase machine delivery time.
Operate two different barrel sizes – one short load and one bulk load – Two TB-3 machines will out produce one TB-4 model
Wet or dry
56 cfm @ 100 psi each barrel, total 112 cfm @ 100 psi (most tumble machines operate at higher pressure because of the distance of the nozzle to the parts)
TB-4 operation requires compressed air in addition to the air usage required by the machine it’s being added to. Check line pressure making sure it’s 100 psi or higher for proper operation of any TB model. Distance from the nozzle to the part requires higher than maximum impact velocity blasting pressure, and while lower pressure will work, the loss of frictional heat can increase processing time.
Air compressors vary greatly, check the cfm output on the compressor being used or visit Air Basics for more information on compressor selection.
Pro Tip: Never buy a compressor using the displacement cfm number, always use the second cfm volume number listed with 90-100 psi inside the tank, because tank pressure reduces performance.
0-150 mesh internal separator
Available 150-240 mesh using any external separator machine model
60 to 150 mesh for internal separator reclaimer, 80 to 240 mesh for pneumatic conveyor operated machine or external separator reclaimer
Glass Beads, Aluminum Oxide and Silicon Carbide… due to distance to parts the processing pressure may be higher than maximum impact velocity
1100 cfm blower w/ silencer – high-voltage single power source – 440 sq.ft. cartridge filters – hopper dust storage – automatic timed pneumatic dust collector cleaning ask standard
2 each variable speed 1/2 hp DC drives, 28 rpm max – 12 to 22-inch barrel diameter – special dedicated square cabinet design with no manual workstation – 1-1/2″ diameter barrel jack shafts and bearings – dedicated tumble barrels for production operation – install a smaller barrel size for short loads – includes operator jog for loading and unloading – optional automatic cleaning 880 sq.ft. dust collector for high DDC, daily duty cycle
Restrictions and Warning
Environmentally friendly, high-grade polyurethane high gloss paint. Standard colors include MBA beige and high gloss light gray. Custom color matching is available using customer supplied color sample, please call 866-204-7068 for pricing.
48" x 36" x 36"H
Door 30" x 31"H
60" x 51" x 90"H
440 sq.ft. cartridge
700 cfm 3/4 hp blower C-III standard
Timed pneumatic cleaning cycle
Single power source