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Wheelabrator HB 32 Schlick Hanger Type Blast Cabinet

Stock No
ST648
Manufacturer
Wheelabrator
Model
HB 32
Year of Manufacture
1998
Serial
70266
New or Used
Used (Second Hand)
Work Envelope (WxDxH mm)
Ø1200 x 1800 mm drop
Work Handling Method
Manual load auto blast
Other Info
Recently refurbished with new wheels
Location
Our Central Warehouse, Aldridge, UK
Weight (kgs)
3000kgs
External Dimensions (WxDxH mm)
3800 x 3600 x 5600mm*

Description

Wheelabrator HB Hanger Type blast machines provide total flexibility in your shot blast operations. Whether you are cleaning welded structures and fabrications, cleaning and deburring castings, or shot peening dynamically stressed components, the range of applications is almost endless. 

Wheelabrator overhead rail shot blast machines can be used for a wide spectrum of applications and workpiece shapes and sizes.

Characteristics

• Versatile transport technology
• Highly efficient blast wheels

Applications

• Removal of mill and forge scale as well as rust
• Removal of burrs and scales
• Removal of moulding sand
• Increase of surface roughness
• Shot peening to increase fatigue strength

Applications include blast cleaning welded steel fabrications, deburring and homogenising diecast parts, and peening dynamically stressed components. Batches of small components or singular large, heavy workpieces can be treated. This flexibility is achieved by several special features:

GN Wheels

The GN wheels were purchased from Straaltechniek group in 2004. 

The 3 x blast wheels provide a very efficient abrasive pre-acceleration, which allows for short treatment times, high performance and a superior blast process.

Rotation and oscillation

To achieve complete coverage, the workpiece carrying hooks rotate and stop automatically at three automatic workpiece feed different points in the blast cabinet. This rotation and oscillation process means that even highly complex workpieces, with hard to reach surfaces, can be safely and accurately treated.

Straaltechniek International

Straaltechniek International, the innovator in shot blast applications, has designed a new shot blasting GN WHEEL®  that is optimized compared to every other wheel in the industry. The GN WHEEL ®  is equipped with forward curved blades for high shot blasting efficiency and full width blade support. The innovative design improves the shot-flow, extending the lifespan of the wheel significantly. When eventually replacing the blades becomes a necessity, downtime is minimized thanks to the possibility to replace the blades easily and in situ.

 

The GN WHEEL ®  is equipped with the latest TRIPLE F technology:

-Forward curved carbide blades

-Full width blade support (patent pending BE 2012/0244)

-Flow optimization

In short, the costs of ownership for the GN WHEEL ®  are extremely low, while efficiency and uptime have never been so high.

 Optimized performance compared to traditional wheels:

-Reduced stresses on blades (10 x less)

-Up to 70% more blasting efficiency

-Shot-flow optimization up to a factor 7

-Lifespan of support disks up to 3 times higher

-Lifespan of the blades is over 10 x longer than tool steel blades

-Lifespan of the blades is 30% longer than carbide blades of any competitor.

 

Full width blade support

 

Traditional blade supports result in severe peak- and bending stresses  within  the  blades.  Therefore,  Straaltechniek designed  a  revolutionary  blade  (patent  pending  BE  2012  / 0244) equipped with a support bracket over its entire width. As a  consequence,  stresses  are  reduced  by  a  factor  10 compared  to  competitors’  wheels.  This  pays  off  in unsurpassed uptime, saving considerable costs of ownership.

 

Shot-flow optimization

 

The  symmetrical  sandwich  construction  (double-disc)  of  the GN  WHEEL ®   channels  the  blasting  abrasive  efficiently through  the  wheel.  While  traditional  wheels  loose  blasting power due to vortexing abrasives, power is optimized in the GN WHEEL ®  since connecting bolts are assembled within the revolutionary support brackets. This further reduces your cost of ownership.

 

The  innovative  design  of  the  GN  WHEEL ®   accounts  for  a shot-flow  optimization  up  to  a  factor  7  compared  to competitors’ wheels. Energy efficiency is increased by 5% and the lifespan of support disks is increased by up to a factor 3 compared to competitors.

 

 Forward curved blades

Straaltechniek incorporated the beneficial principle of forward curved blades into its revolutionary blade support concept.

By design, collision speeds are reduced at the entrance leading to decreased wear of both blades ánd abrasive. Along with the shot  projection  angle,  this  allows the projection speed to increase  with 25 %, leading to a significant decrease in abrasive usage compared to wheels equipped with radial blades. The efficiency of the GN WHEEL ®  is up to 70% higher than traditional shot blasting wheels.

 

Special Features and Options

The Process

The workpieces are transported manually on rotating hooks on an overhead rail system into the blast cabinet. The blast cycle runs in accordance with the preset programme and blast time.

Standard machine:

overhead rail shot blast machine 

Used abrasive and fines fall through the abrasive collection hopper beneath the blast cabinet and are transported via a screw conveyor to a bucket elevator and to the abrasive reclamation unit. In the reclamation unit, the used abrasive is separated from fines and contaminants and returned to the abrasive silo.

Manually Operated Monorail

As standard, the monorail system is designed in a Y-shape and equipped with two carrying hooks made from manganese steel. The workpiece batches are manually pushed to the door of the shot blast machine where they are automatically taken by a feeding system. 

Lifting Gears (optional extra)

Depending on the workpieces to be treated, and the preceding and subsequent processes, it may be advantageous to combine the carrying hooks with a chain hoist so that workpiece batches or heavy parts can be easily picked up.

The chain hoist is operated directly at the loading/unloading station of the overhead rail system.There is another advantage of using lifting gear with large machines: to provide an ergonomic loading/unloading process the machines without lifting gears are often placed in a foundation pit to lower the position of the workpiece carrier. When a lifting gear is used the foundation pit is not necessary.

TITAN Blast Wheel

The wheel is the heart of the shot blast machine and its design determines the performance and profitability of the machine. In this overhead rail shot blast machine, TITAN blast wheels are used as standard.

In addition to the excellent blast performance and the unbeatable service life of the main wear components due to the use of hardened tool steels, the TITAN blast wheel has a higher wall thickness of the wear liners compared with other wheels. This creates a hermetically sealed casing within the wheel housing and is very easy to maintain.

Many variations are available, making the TITAN blast wheel ideally adaptable to your application.

Blast Cabinet with wear resistant lining

The blast cabinet of this machine is completely made from manganese steel. The advantage of manganese steel: it is hardened by the impact of round abrasive from 35 HRC to more than 50 HRC, so it has extremely good wear characteristics.

Wear plates around the “hot spot” provide additional protection for the cabinet. Made from 10 mm thick manganese steel, they overlap, suspended on a carrying system. To seal the cabinet, a slot seal is integrated in the machine roof to avoid the escape of abrasive from the monorail slot.

The sealing system consists of a manganese steel labyrinth with a double rubber lip and additional strip brushes.

Abrasive Removal

During the blast process, dust, broken abrasive and other solid particles or contaminants (fines) are generated by the rust and scale removed from the workpieces. The fines are separated in the abrasive reclamation unit which is individually adjustable to the different types and sizes of abrasive.

The Abrasive reclamation unit consists of an impact separator and a reverse pulse cartridge filter. The impact separator removes the fines from the abrasive and serves as a certified spark extinguisher and meets all ATEX regulations.

The cartridge filter provides the necessary negative pressure to remove dust. lt is installed separately beside the shot blast machine. The filter is automatically cleansed by compressed air pulses which are adjustable in intensity and duration. All elements of the filter unit are free from ignition sources.

Alternatively, wet filter units can be used for the necessary dust removal. This is often applied in aluminium die casting.(optional extra)

Technical data

Machine type: HB 32
Max diameter of workpiece batch Ø 1200 (mm)
Max workpiece height (mm)  1800 
Max workpiece weight (kg) 800 
No. of wheels x power (kW)  3 x 7.5 
Wheel option (kW) 3 x 11 
Machine footprint (inc. Y overhead rail, exc. filter) mm 3800 x 3600 x 5400mm

pdf icon Print / Download Wheelabrator HB 32 Schlick Hanger Type Blast Cabinet Datasheet

Additional files

Photographs taken prior refurbishment. Our refurbishment service is not available on all machines.