Standard Telescopic Steel Covers
Telescopic Steel Covers
There are numerous companies around the world that manufacture or market standard steel telescopic covers. In a few years, our company has reached a productive dimension in terms of volumes and quality standards, which place it at the top of the market.
Significant investments in machinery and in training programmes for human resources, under the guidance of highly professional technicians, have allowed us to face the real new challenge that the evolution of machine tools places us in front of: the use of linear motors and the increase in axis speeds.
The quality of execution and the attention paid to shock absorbers enable us to solve problems related to high speed.
The steel used for the manufacture of standard telescopic covers is of the highest quality for flatness, corrosion resistance and wear resistance. The thicknesses used vary from 1.5 to 3 mm.
Standard telescopic covers in stainless steel can be built, the production of which requires high quality materials and components, as well as sophisticated production technology. The high speeds of movement require continuous innovation.
Oil Scrapers
Oil Scrapers
Oil scrapers keep the surface clean and prevent chips from getting under the plates.
They must be resistant to heat and refrigerants, therefore they are supplied in polyurethane, with or without a protective stainless steel screen.
Removable Oil Scrapers
PR4A the interchangeable and removable oil scraper
The PR4A OIL SCRAPER is an innovative solution to replace the scraping profile quickly and without machine stops.
The PR4A OIL SCRAPER consists of three independent elements:
- a metal profile, integrated with the body of the telescopic cover.
- a second removable metal profile.
- the third is the scraping profile intended for cleaning the cover.
The technical characteristics vary depending on the work environment for which it is intended. For example, for work environments with refrigeration liquids or for dry processing in the PR4A D version.
Telescopic covers equipped with the PR4A OIL SCRAPER
allow customers to independently replace the scraping profile by following simple instructions:
- unhook the removable part
- replace the removable metal profile already prepared with the new one
- scraping profile.
Patented
Pulling Mechanisms
Traditional Pantograph
This lever system allows all boxes of a telescopic cover to be pulled at the same time, so that each box is moved together and evenly with the others.
As there are no collisions between the boxes, the system works regardless of the speed at which the telescopic cover opens and closes, thus allowing high speeds.
The correct sizing of the components of the pantograph, together with the correct dimensional and geometric design of the boxes, makes the system robust and durable.
The machine must exert a force to pull all the boxes simultaneously, even for short strokes.
The pantograph helps to maintain a constant roughness in high finish machining.
SYNCHRO-TEL TECH
SYNCHRO-TEL TECH: a perfect fit.
SYNCHRO-TEL TECH harmonises opening and closure of medium-sized telescopic covers and is suitable for high speeds and accelerations.
The coupling tolerance between the metal rods is reduced to a minimum.
Unlike a normal pantograph, it has up to three pivots attached directly to the boxes, avoiding sway of the braces.
Mathematical testing and calculations guarantee that SYNCHRO-TEL TECH is the most reliable and durable synchro system on the current market.
(Patented)
DAMPER-SHELL EVO
DAMPER-SHELL EVO is a viscoelastic shock absorber for energy dissipation in large scale telescopic covers working in horizontal and frontal positions.
It is made of a special P.E.I. formulation polymer fabric and is produced in two different geometric dimensions.
DAMPER-SHELL EVO guarantees up to 2,000,000 cycles, is suitable for working speeds of up to 100 m/min. and accelerations of up to 1g.
It opens smoothly during expansion without causing friction on the boxes, besides it is free from boost residue whether the telescopic cover is closed or in resting position.
It is ideal for long strokes being a silent, durable and reliable solution and at last is maintenance-free.
(Patented)
Other components
Lifting Systems
Lifting systems can be applied to the various forms of telescopic covers and have different characteristics according to each customers’ needs and the weight of the protection.
Shock Absorbers
In case of high speed, PEI shock absorbers (patented) are inserted.
Particularly effective for dissipating the energy that is discharged on the towing system when the caissons engage each other in opening and closing, reducing noises and oscillations.
Made of polymeric material that does not deteriorate in contact with coolants and does not wear with the abrasion generated by the sliding of the caissons.
Designed in various shapes and sizes to adapt well to the size of the roof and the energy involved.
Particularly effective for dissipating the energy that is discharged on the towing system when the caissons engage each other in opening and closing, reducing noises and oscillations.
Sliding Blades
Constructed in special anti-friction brass, or in non-metallic material, they offer low friction and do not wear the rails of the machine on which they slide.
Available in different sizes and sections.
The coupling blades for vertical or transversal covers are shaped to follow the profile of the rails.
Rollers and Bearings
To improve the sliding of the protection at high speed, rollers made of brass or non-metallic material are used.
They do not wear out the rails of the machine on which they roll.
In case of high speeds combined with a high weight, special bearings are inserted that allow safe and silent sliding.
Both the rollers and the bearings are assembled on our screwed supports that allow correct alignment and quick and easy maintenance.
Working positions
Horizontal
To be used when the opening and closing direction is horizontal.
The most common, from small to very large size with very large strokes.
Few form constraints.
In most cases, assembly in the machine takes place by lowering the cover from above, allowing it to be manoeuvred in small spaces.
Vertical
To be used when the opening and closing direction is vertical.
From small to medium/large size.
To prevent the caissons from unhooking from the rails, custom-made hooking pads are mounted to fit on the rail profile.
In most cases, the assembly of the cover in the machine takes place by inserting the cover into the rails, so it is necessary to provide for the manoeuvring space both in the upper part of the machine and in the lower part where it is necessary to prepare a removable rail.
For larger dimensions, it is possible to insert hooking pads, which allow the assembly of the cover in front of the rail surface, without having to insert it.
The special construction of the sheets inside the cover is optional to prevent oil from leaking onto hydrostatic rails.
Transversal
To be used when the opening and closing direction is transverse.
From small to large size.
To prevent the caissons from unhooking from the rails, custom-made hooking pads are mounted in the upper part to fit on the profile of the rails.
Depending on the space available, the shape and position of the rails, the assembly in the machine can take place from the front from above, or it may be necessary to insert the cover into the rails.
The transverse covers placed between two wagons must be designed to be able to be mounted frontally from above.
Multi-axis for lathes
Telescopic cover for the Z axis of the lathes or for the axes parallel to the Z axis, such as for counter spindle, tailstocks, steady rests.
Based on the axis involved, the geometry of the telescopic elements, the shape and position of the rails, the assembly can be frontal, or it may be necessary to insert the cover into the rails.
Configurations
Form 1
Form 1: economical, for small and medium sizes, even for long runs.
Form 2
Form 2: economical, for small and medium sizes, it allows more useful space for the workpiece that can take advantage of the free volume left by the inclination of the boxes, as on large parallel lathes.
It allows you to direct the coolants and the shavings towards the collection device. Even for long runs.
Form 3
Form 3: the double inclination stiffens the sheets of the boxes, allowing a high and long-lasting scraping of the telescopic elements, avoids the stagnation of coolants and shavings, giving longer life to the oil scraper seals.
Suitable for small to medium and large sizes, even for long runs.
Form 3 variant
Form 3 variant: the asymmetry of the form is combined with the advantage of the double inclination that stiffens the sheets of the boxes, allowing high and long-lasting scraping of the telescopic elements, which leads to a greater useful internal space to contain energy chains, or other devices placed parallel to the machine axis.
Suitable for small to medium and large sizes, even for long runs.
It allows you to direct the coolants and the shavings towards the collection device.
Form 4
Form 4: the triple pitch leads to a high rigidity of the caissons and allows the construction of wide covers with excellent scrapability of the telescopic elements.
Suitable for medium, large and very large sizes, it allows long strokes.
It supports the large quantity and weight of the chips well.
For lathes
For lathes: traditional cover for the axes of lathes with an inclined guide surface, allows ample space for the workpiece, integrates well with the covers of the tailstocks, steady rests and counter-spindles, creating favourable labyrinths to prevent the entry of even the smallest ones.
Documentation
Telescopic cover questionnaire
