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DP Series

Direct Pressure Cabinet Systems

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Direct pressure cabinets utilize an ASME coded pressure pot to hold abrasive media. When the foot pedal control is depressed, air pressure is released into the pressure pot, pressurizing the pot and then forcing the media from the pot through the blasting hose to the blast gun and nozzle.

Direct Pressure Blast Cleaning

Most direct pressure blast cleaning is done at 40-60 PSI. Due to these lower pressures, abrasive media breakdown is greatly reduced even though a high volume of media is being directed at the part to be cleaned. Most of the media is recovered through the recycling process of this abrasive blasting system.

Direct pressure blasting is ideal for tough jobs, applications where large surfaces must be cleaned quickly, production blast cleaning or jobs that require the use of heavy media or large mesh sizes. Popular media that are used in direct pressure cabinet systems are


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Wide Range of Media & Pressure Levels

Kramer Direct Pressure Cabinets feature large dust collectors, heavy-duty blast hoses, tungsten carbide nozzles and heavy-duty mixing valves. Designed for speed, pressure cabinets produce high media velocities and volumes. You get 2-3 times the production speed with a pressure system as with a conventional suction system. The use of a pressure tank forces media through the blast hose rather than siphoning it, resulting in more efficient use of air and greater control of media flow.

These cabinets can be used with a wide selection of media and pressure...pressures low enough to blast delicate parts and high enough to handle the most demanding cleaning and finishing operations. With pressure blasting, you get top performance at both ends of the pressure scale!

In pressure blasting, a controlled quantity of media is pressurized by drawing through a special ASME pressure tank. It is joined by compressed air entering the system from your air compressor. The air and media mixture are then propelled together through a single hose to the nozzle at an extremely high speed. The media is recovered and reclaimed for reuse. Broken down media and debris are removed and trapped in the dust collector.

Model Features & Specs



Direct Pressure Cabinet Features & Parts

Direct Pressure Cabinet Features & Parts

Cabinet

14-gauge welded steel construction.

Double floor - 1/8" expanded steel plus carbon screen.

3/4" pipes and heavy-duty mixing valve.

ASME Coded pressure vessel with easy access clean-out port, automatic sealing plunger and pneumatic vibrator.

Pressure tank mounted at the bottom of the cabinet allows for the use of heavy steel abrasives.

Optional deluxe counter balance available on all split-level cabinet models.

Window

Easy change window frame.

Safety glass windows for excellent visibility and increased efficiency.

Lighting

Fluorescent lighting to eliminate shadows and minimize energy usage.

Gloves

8" diameter neoprene

Gun System

Equipped with tungsten carbide nozzles. (1/4" diameter nozzle is standard. 1/8", 3/16", and 5/16" diameter nozzles are also available.

30-120 PSI pressure range.

1/2" ID heavy duty blast hose.

Safety enclosed foot pedal.

Pressure
Pot

1.0 cubic foot capacity (100 lb standard) unless otherwise noted.

With a full pot using a 1/4" nozzle and blasting at 50 psi the pot will empty in about 10 minutes. When the foot pedal is released it takes about 10 seconds for the pressure in the system to bleed out through the nozzle. The plunger in the pot will then drop allowing the cleaned media in the storage hopper to refill it. Refilling can take 20-60 seconds depending on media type and grit size.

Dust Collectors

All models except DP3630 feature a 400CFM pull-through type dust collector with motor and impeller on clean-air side, 10-gauge welded steel construction, 30 tubular filter bags (145 ft² surface area) and a manual bag shaker.

Model DP3630 features an pull-through type enclosed dust collector with motor and impeller on clean air side, 14-gauge welded steel construction, full size access door, 12 tubular filter bags, removable dust drawer and exhaust muffler.

The 900RPC Reverse-Pulse Dust Collector is available on models DP4040S and larger.

Air Pressure Gauge

Included with all models.

Air Line Water Filter

Included with all models.

Electrical

All models except DP3630 feature a 230V/60 Hz/1 phase motor.

Model DP3630 features a 115V/60 Hz/1 phase motor.

Abrasive Separator

10-gauge welded steel.

Vibrating particle screen.

850 CFM.

Motor: 2 HP/3450 RPM/230V/1 phase/60 Hz.

Not available on DP3630.

Air Cylinder

Optional accessory for power-assisted opening and closing of larger split-level models. view photo »

click on highlighted model number to view picture

Direct Pressure Series Model Specifications

Direct Pressure Cabinet Model Specifications

Model

Style

Dimensions


(width x height x depth)
floor space (w x d) includes dust collector

Doors

Windows

cabinet Inside:
36" x 23" x 30"
Overall:
41" x 68" x 35"
Floor Space: 41" x 67"
two 14" x 20" side doors

one 36" x 13" lid opening
one
12" x 24"
cabinet Inside:
36" x 36" x 36"
Overall:
40" x 78" x 37"
Floor Space: 96" x 85"
two 28" x 30" side doors one
12" x 24"
split-level cabinet Inside:
40" x 31" x 40"
Overall:
44" x 71" x 66" closed
44" x 77" x 66" open
Floor Space: 96" x 71"
one 20" x 30" side door

one 40" x 40" flip top lid
one
12" x 24"
DP4836 cabinet Inside:
48" x 36" x 36"
Overall:
53" x 78" x 37"
Floor Space: 104" x 90"
two 28" x 30" side doors one
12" x 24"
split-level cabinet Inside:
48" x 31" x 48"
Overall:
52" x 71" x 74" closed
52" x 71" x 77" open
Floor Space: 100" x 77"
one 20" x 36" side door

one 48" x 48" flip top lid
one
12" x 24"
DP6030S split-level cabinet

dual workstations for a single operator
Inside:
60" x 31" x 30"
Overall:
64" x 71" x 56" closed
64" x 71" x 60" open
Floor Space: 111" x 77"
one 17" x 16" side door

one 60" x 30" flip top lid
two
12" x 24"
split-level cabinet

dual workstations for a single operator
Inside:
60" x 31" x 48"
Overall:
65" x 71" x 74" closed
65" x 71" x 77" open
Floor Space: 111" x 77"
one 20" x 36" side door

one 60" x 48" flip top lid
two
12" x 24"
DP7248S split-level cabinet

dual workstations for a single operator
Inside:
72" x 31" x 48"
Overall:
75" x 71" x 74" closed
75" x 71" x 77" open
Floor Space: 127" x 90"
one 20" x 36" side door

one 72" x 48" flip top lid
two
12" x 24"
split-level cabinet

dual workstation / dual operator model
Inside:
96" x 31" x 48"
Overall:
102" x 71" x 74" closed
102" x 71" x 77" open
Floor Space: 200" x 90"
two 36" x 20" side doors

one 96" x 48" flip top lid
two
12" x 24"

Converts our siphon type cabinet (SS Series) to a direct pressure unit. Can be adapted to any standard siphon-type cabinet with a minimum of effort to afford you the speed and efficiency of direct pressure blasting. Includes 850 CFM abrasive separator. Abrasive capacity: 150 lb. Overall dimensions: 70" x 104" x 40"