The holding force is 20 percent higher compared to the SCM original, while the stability is comparable.∼ Markus Hermann, Managing Director of Müller Manufaktur Möbelbau GmbH
Schmalz Vacuum Blocks Optimize CNC Machining
Müller Manufaktur is gradually replacing the original clamping equipment on its machines from Italian manufacturer SCM with the new Schmalz VCBL-S6 vacuum blocks. They not only reduce set-up times and are cheaper to purchase, but also offer higher holding forces.
Features of the success story
| Industry | Furniture construction |
|---|---|
| Workpiece | Wooden boards |
| Product group | Vacuum Lifting Device VacuMaster Wood |
| Type of handling | Clamping systems |
With Schmalz
30
percent
more holding force
40
percent
cheaper replacement
The customer: Müller Manufaktur Möbelbau GmbH
Müller Manufaktur Möbelbau GmbH, founded in 1930, is a renowned company in the premium wood working sector. Based in Bad Rippoldsau, Baden-Württemberg, the company specializes in the development of individual office furniture. Its portfolio includes a wide range of high-quality furniture, including conference tables, sideboards and highboards, workstations, cabinet modules and reception desks. Müller Manufaktur's customers are well-known companies from various sectors, including industrial and service companies, banks, lawyers, tax consultants and insurance companies. In addition, the company also supplies educational and research institutions and German embassies worldwide with its exclusive products. With a team of twelve employees, Müller Manufaktur shares a passion for wood and strives for perfection in the manufacture of its furniture. In their modern operation near Freudenstadt, they work to make their exclusive products known internationally and build a strong presence.
The challenge
Müller uses modern CNC machining centers from the Italian manufacturer SCM, among others. The Morbidelli m200 is used to manufacture flat workpieces such as table tops or worktops in small quantities or one-off production. The machines can process the blanks from five sides. This involves high lateral forces, which the clamping system must clamp safely despite rough surfaces or curved contours. The furniture manufacturer was not entirely satisfied with the original vacuum blocks from SCM used previously. Although they are of comparable stability, it is very difficult to replace the sealing lip if it is damaged. Disassembly requires a lot of dexterity and the use of a slotted screwdriver with the risk of further damaging the suction cup. The carpenters also have to readjust the sealing lip several times to achieve a precise fit. In addition, the high cost of the original vacuum blocks was an issue for the carpenters. In view of these challenges, Müller decided to accept Schmalz's offer and test the newly developed VCBL-S6 type vacuum blocks.
The solution from Schmalz
The Schmalz solution is a clamping system that has been specially developed for the consoles of SCM machines. The VCBL-S6 type vacuum block is characterized by a robust main body made of fibreglass-reinforced plastic, which carries the suction plate with membrane. This suction plate can either be attached directly or circuitried with an elevating suction cup. The suction cup is positioned easily and precisely during production in 15-degree increments using a clamping lever. A touch valve makes it possible to leave unused suction cups on the machine, which reduces set-up time. The membrane of the suction plate protects the vacuum block from the ingress of chips. The elastomer part of the suction plate provides optimum sealing and can be replaced quickly and without tools when worn. To avoid errors when ordering spare parts, the VCBL-S6 vacuum block is equipped with an NFC tag that allows all relevant product data to be called up directly via the Schmalz ControlRoom app on the user's smartphone. The vacuum blocks from Schmalz are impressive. Compared to the SCM original, the holding force is 20 percent higher with comparable stability. This results in shorter set-up times, as carpenters can quickly adjust the rotatable vacuum block and replace damaged suction plates easily and without tools. The high holding forces improve process reliability at high feed rates and cutting depths. In addition, the height tolerance with Schmalz is more dimensionally accurate compared to the original, which enables more precise production. The mixed operation between the SCM and Schmalz suction cups runs smoothly, which speaks in favor of a gradual changeover to the Schmalz solution. Since the pilot project at Müller Manufaktur, there has been regular contact with Schmalz and the cooperation is running smoothly. Schmalz always takes the varying workload of the joinery into account when scheduling, which Managing Director Markus Hermann emphasizes positively.
The suction cup can be fixed in the holder in 15-degree increments without tools using the orange clamping levers.
Short set-up times: Adjusting the rotatable vacuum blocks and changing the suction plate is quick, easy and tool-free for carpenter Michael Spinner.
Markus Hermann (left), Managing Director of Müller Manufaktur Möbelbau GmbH, with Matthias Schmider, Product Manager at Schmalz.
Customer benefits through the Schmalz solution
Reduced set-up timesRotatable vacuum blocks for easy adjustment
Higher holding forceThe Schmalz suction cups offer a 20% increase in holding force compared to the original
Quick, tool-free replacementDamaged suction plates can be replaced easily and without tools
Products used in the application
Vacuum Blocks VCBL-S6
- For SCM TV consoles of the series Flex, Flexmatic, Start or Pilot with 98 mm console width
- Integrated touch valve and NFC tag
- With mechanical pre-fixation