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1st Machine Tool Accessories (1st MTA) has introduced the Alpha workholding range of magnetic milling chucks and material-handling devices for heavy machining applications.

Ruggedly constructed for consistent accuracy and extended working life, Alpha Bi-Polar (ABP) milling magnets are said to provide a versatile method of delivering secure clamping, reduced vibrations and extended tool life.

They are available in four lengths from 500mm to 2,000mm, with standard height and width dimensions of 144mm and 200mm respectively to provide the efficient clamping of a range of workpieces.

Individual pole extenders can be used to raise parts from the magnetic chuck surface for through-hole work, while self-shimming pole extenders are available for holding parts with features such as stepped diameters.

ABP’s use of permanent electro technology means that the system does not require a continuous electricity supply to maintain its strong magnetic field.

In addition, Alpha controllers are equipped with circuit breakers and, if required, can be linked directly to the machine tool’s programmable logic controller (PLC).

Using a similar permanent electromagnetic system to the ABP range, 1st MTA’s Alpha Mill Round (AMR) milling magnets are claimed to be extremely versatile.

The Alpha Mill system ensures that the workpiece is uniformly supported over a larger area, minimising vibration and enabling the use of faster feed rates, without impairing tool life or machining quality.

With each individual pole generating up to 1400lbf of clamping force, AMR is ideal for machining processes such as milling, drilling and tapping.

Simple calculations allow users to verify the clamping safety factor for any given machining application.

Allowing five-face machining in a single setup, the system enables setup times to be reduced by up to 50 per cent when compared with conventional fixturing.

AMR’s strong magnetic field also penetrates only 0.400in (10mm) in depth, eliminating the problem of unwanted magnetic chip adhesion by keeping the workpiece surface free from residual magnetism.

AMR units are fully sealed against coolant ingress and are available in 4in length and width increments.

At the heart of each Alpha Mill system is the Alpha Control, which employs microchip technology to deliver features including machine tool and safety interlocks, a CNC interface and precise current sensing.

Complementing 1st MTA’s new range of magnetic chucks, the Alpha A-Pod magnetic workholding system is suitable for frequently changed machining setups or where the use of dedicated fixturing is not practical.

Comprising a series of 3.66in-diameter modular units, which can be mounted by a through-bolt into a ’T’ slot or sub plate, the system requires virtually no maintenance and offers an ideal replacement for systems such as hydraulic fixtures.

A-Pods share many of the attributes of Alpha’s chuck systems, including permanent electromagnetic technology and the generation of up to 1,400lbf of grip, to ensure the high-strength location of ferrous components for machining, grinding, polishing, measuring, welding and assembly operations.

Completing 1st MTA’s new magnetics range is the Alpha Workholding Solutions Eagle Lift series.

Featuring Alpha’s permanent magnet technology, Eagle Lifts are available in five sizes, with flat-stock safe working load capacities ranging from 125kg to 2,200kg.

Each model incorporates deep ’V’ grooves between its pole shoes for the secure lifting of round stock.

Portable, compact and lightweight, Eagle Lift products are designed and tested to exceed the relevant ASME B30 guidelines.

The range also incorporates Alpha’s Test Talon safety feature, which allows users to safety test load-carrying capabilities for each application prior to use.

1st Machine Tool Accessories

1st Machine Tool Accessories Ltd specialises in high quality workholding equipment and associated products from the world’s leading producers.

1st Machine Tool Accessories Ltd specialises in high quality workholding equipment and associated products from the world’s leading producers.

1st MTA:

·         provides technical assistance via trained representatives including site visits and demonstrations where possible;

·         is constantly expanding and updating the product range to give customers the best possible choice;

·         offers bespoke/customised solutions;

·         provides the easiest and most efficient way to order all your machine tools and accessories by phone, fax or on-line.

The product range includes:

·         Kitagawa:

o   Chucks: power, collet, manual, speciality and all accessories.

o   Cylinders: hydraulic and pneumatic.

o   NC Rotary Tables.

o   Vises: precision machine.

·         Fixturing and Clamping Parts.

·         Collets:

o   Varibore,

o   Spring,

o   Emergency

o   Pull back.

·         Chick Workholding: the leader in modern workholding for modern CNC machines.

·         Brighetti Reduction Bushes:

o   Slotted

o   Cylindrical

o   Conical

o   Elastic

o   Fixed by dowels.

·         OK Vise: low-profile clamping.

·         Mitee Bite: versatile, cost-effective clamping – fast and easy operation.

·         Cooljet High Pressure Coolant.

·         Magnetic Filtration

·         Bison:

o   Chucks: manual and power;

o   Hydraulic/pneumatic cylinders;

o   Precision machine and bench vises;

o   Rotary tables and indexing fixtures

·         Abbott Workholding:

o   Pie jaws;

o   Tooling columns.

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