HT Overhead Monorail Blast Cleaning Machine

Technology:

Wheelblast

Application:

Cleaning, Corrosion Removal, Deburring, Rust and Heat Scale Removal, Shot Peening

Industry:

Foundry/ Forge

Process:

Batch

Heavy duty, compact and rugged design for long service life

High blasting capacity and efficiency

Economical abrasive consumption, reliable cleaning and dust collection

A wide range of machine types for different production rates and workpieces

Features

Easy integration into existing production lines with a variety of options for step-by-step extension and automation (modular design)
Long life due to use of highly wear resistant material
High operational safety, low maintenance and maintenance-friendly design (easy access to maintenance areas, external bearings, easily replaceable wear parts)
High sand separation capacity with combined magnetic and air-wash separation

Applications

Desanding, decoring and final blast cleaning of iron, steel and light metal castings, including parts susceptible to breakage and impact damage
Descaling of forgings, hardened or heat treated steel parts
Derusting, roughening, finishing
Shot peening
Suitable for two- or three-shift operation

Accomplishing Blast Cleaning Tasks and Solving Transport Problems at the Same Time

The workpieces are carried on hangers which, inside the blast cleaning zone, are subjected to either a rotary and oscillating motion or only a rotary motion in various blasting positions ensuring that complete cleaning of the workpiece surfaces is attained.

Proven Solutions

The basic series comprises machine modules of different sizes equipped with 2, 3, 4 and more blast wheels. Depending on the dimensions of the parts to be cleaned and the output required, it is possible to connect several machine modules in series. The concept covers machines for reversible or for through-feed operation. For processing large parts, inlet and outlet vestibules can be provided. The unique blast wheel arrangement ensures that all faces of components, even with undercut walls and surfaces, can be cleaned in one passage.

HT Hanger Type Machine Design Versions

Standard Machine Modules

HTR Hanger type shot blast system, reversible operation

HTT Hanger type shot blast system, through-feed operation

HTC Hanger type shot blast system, combination of through-feed operation and rotation movement

HT Hanger Type Machine Principles

Overhead Monorail Systems

Overhead monorail systems as transport equipment offer a variety of possibilities for optimum material flow and contribute to a considerable reduction of finishing costs.

Overhead monorail systems accomplish blast cleaning tasks while at the same time solving handling problems to benefit the overall production process. Rails, switch points and crossings permit the material flow to any further operation. Routing changes or extensions can be implemented without great expenditure.

The transport hanger is loaded outside the machine by hand, forklift, crane, lifting gear or robot and then moves into the shot blast cabin where all surfaces of the workpieces are treated in one passage.

Reversible or Through-feed Operation

In the blasting zone the hanger is rotated and oscillated using a drive unit. Reversing operation (clockwise and counter-clockwise rotation) is available as an additional mode. This mode of operation allows shot blasting at different angles to the workpiece to avoid blast shadows.

Loop Principle

For parts susceptible to impact damage, several passes can be made through the shot blast machine by using loops, exposing a different workpiece surface on each pass.

Standard Hanger Systems

The shape and design of the hangers depends on the parts to be cleaned and the task to be performed. The range of possible solutions cover:

Manually actuated hangers
Hangers driven by chain conveyors
Motor-driven automatic hangers

Manually Actuated Hangers

For small series and unit weights of up to 2000 kg, manually actuated hangers can be used. Electric driven systems with lifting gear for loads up to 20 000 kg (30 000 kg, special design) can be designed upon request.

Hangers Driven by Chain Conveyors

Chain conveyors offer a variety of extension possibilities and are suitable for companies processing small to medium-size parts.

Power and Free systems; with individual rail layouts for loads of up to 10 000 kg perhanger
Circular conveyor systems with connector chains for intermittent or through-feed operation, for loads up to 10 000 kg

Motor-driven Automatic Hangers

Motor-driven automatic hangers are suitable for small, medium and large-size parts.

Electric overhead monorails with automatic drive mechanisms for loads up to 10 000 kg

HT Hanger Type Machine Hanger Systems

Crane and Transfer Systems

Pre-programmable drive mechanisms roll on a carrying rail with power supply and have individual drive units.

Loading and unloading areas can be perfectly adapted to local conditions. To control the direction, the hangers travel in a system of switch points, sluices, lifting and lowering elements are integrated into the overall monorail system.

Monorail crane systems with lifting gear, for loads up to 50 000 kg
Crane systems with lifting gear, for practically unlimited loads

Universal Blast Wheel

The blast wheel is the heart of the blasting machine, as the choice of blast wheel determines the power output and the economics.

This machine is fitted with U70x380 (direct drive) shot blast wheels as standard. The Wheels are highly flexible, compact and have rotation in both directions. They provide perfect blast cleaning results and highly convenient servicing features for all heavy duty and foundry applications.

The U Blast Wheels are high capacity blast wheels with maximum energy efficiency. Their rugged design means that maintenance is easy, and the special and highly wear resistant cast alloy liners ensure minimum wear and maximum service life of the blast wheel.

Technical Specifications

Min. envelope circle Ø (mm)	1500
Min. hanger height (mm)	2100
Number of blast wheels	4 and more, extension in modular system
Power per blast wheel (kW)	15-55

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What Next?

We provide high quality, long lasting replacement parts. As the largest distributor of replacement parts in the industry we can deliver globally in the shortest timescales to prevent you having to have a large inventory stock on site or breaks in production.

Parts and consumables

Maintenance and service

We will tailor our service contract to your new equipment and usage, visiting you to ensure to have the optimum uptime and performance for your production needs.

Equipment services

HT Overhead Monorail Machine