Premitec has been selling scrap Shakers (sometimes known as Friction Transporters) for over 10 years,. They have been sold largely to the stamping and metal pressings industry but along the way have been finding new applications for them.
Their flexibility to allow any number of trays to be mounted to them and with a maximum weight of 50kg means they can move anything from a potato crisp to a piece of iron.
The principle behind the Vibratory or Shuffle Conveyor or scrap transporter is a slow acceleration in the forward direction (thus transporting the material forward) and a rapid return stroke leaving the material stationary ensuring movement in one direction only and along the tray.
In addition to being flexible they robust gearbox design means that no matter how severe the environment they will give trouble free service.
Please contact us for more details.
Another batch of Ball Lifters of to our friends in Slovakia.
With a lift capacity of 1,000kg/M and the roller type 1,700kg/M, we really are filling the market/T slots.
The pneumatic lifters are easy to attach with no hard pipe work as with the hydraulic type. Flexible hose from your 6 bar supply only.
Die Lifters are not only used in press beds for SMED. They are also being used in special purpose equipment to load and unload items in the aerospace industry, and CNC machining industry for the loading and unloading of fixtures on and off machine tools.
Premitec is celebrating the 10th anniversary of their first scrap shaker unit to be installed in the UK.
Baxi Boilers of Preston, took delivery of the first UK scrap shaker in November 2005. With a scrap tray clamping beam of 2,500mm, stretching along the back of the press, the ‘setters’ have to replace only the scrap trays for each tool. No spare parts have ever been required even though it has been running 12 hours/day 5 days a week for the past 10 years. As the Press Setter John Waite stated “it’s never missed a beat”.
Baxi engineers found that belt conveyors were not reliable and in many cases not shallow enough to lay under the press tools.
Being an electro mechanical scrap shaker, the Premitec unit provides a reliable alternative to belt conveyors and air shakers, as belts can tear and air shakers fail due to poor air or lack of robustness.
The Baxi tool setters found that the scrap shaker is easily adaptable to meet their requirements. A selection of trays can be mounted on the unit. Common trays can be used for different tools. The length of the trays present no problem.
Scrap Shakers can be found in many other industries, which are ideally suited for this method of transportation such as in casting, foundry, machine tools and the food industry. Many of which have replaced conventional belt conveyors.
Premitec UK are happy to celebrate Baxi’s 10th year of trouble free scrap shaking. Success made possible by a simple robust design.
If you are looking for a helpful alternative to belts and conveyors or would like more information, please give us a call.
An Hungarian white goods manufacture has recently purchased a 2.5 meter long scrap shaker from ourselves.
Having viewed the scrap shakers on YouTube, ‘Emika Elektromechanikai Zrt’ contacted Premitec UK Ltd by email and the order was placed.
After only 3 weeks the unit was installed and running well.
So we are now doing business in Hungary, Poland and Slovakia, as well as the UK …of course!
Here at Premitec UK we can provide you with Pneumatic Die Lifters with either rollers or balls.
Die Lifters with rollers transport the tool or die in a straight line along the length of the rollers. (The length of the T slot).
Due to the large diameter and the one directional movement the amount of push/pull force required is approximately a maximum of 3,500kg per operator. A powerful die setter may be able to comfortably pull/push larger tools when loading or unloading using the die lifters with rollers.
Die Lifters employing balls are able to move the tool or die multi directionally. (forwards, backwards, left and right). However, the amount of push/pull force by the setter is greatly increased, due to the smaller diameter of the balls and the natural movement away from the line of operator directional force when loading. Once the tool is located in the press. it is then very difficult to align the tool left and right due to the operator having to stretch into the press envelope. With large tools over 4 tons, this is nearly impossible.
It has become more common for more engineers to choose the die lifters with rollers. Aligning the tool outside the press, then pushing the tool into the press bed envelope is far easier than using balls and struggling with levers and jemmy bars once it is in the centre of the press bed. And, they are a lower price..!
How to remove the pressed part and the scrap using one scrap shaker system.
When using a progression tool, it is common to use a long conveyor to remove the scrap from the underside length of the tool and a short conveyor to remove the scrap where it emits from the press tool. Problems can be two conveyors to purchase and maintain, belts to change, conveyor clearance under tool to consider.
A UK company had the solution. By mounting one of our scrap shakers (although they call them linear transporters) at the end of the press with a long scrap tray to collect the scrap from under the press, and to that tray a second shorter tray attached to it, they were able to kill two birds with one stone. Both scrap trays are horizontal with no incline required.
This company has now reproduced this method of scrap removal on several of it’s presses. One scrap shaker and two scrap trays.
Our Scrap Shakers are helping to keep initial costs down, reducing maintenance cost to a minimum and reducing quick tool changing (SMED)..