Alinco, at your service.
There is no doubt about what Alinco does: stainless steel sheet metal forming, making products
- ranging from simple pieces to cabinets, carts, platforms and very complex, technically challenging parts
- ranging from industrial finish to very high-end finished parts
While you may consider these as products, we see ourselves primarily as a partner who provides a service. This service translates into:
- support in developing projects, finding solutions in consultation with the customers
- support with design or redesign; if the customer involves us in the bigger picture, we can often offer a cheaper technical solution that is higher quality with a redesign
- support with measurements
- a technical helpline that can be called upon at an early stage of the project design
- of course, our hallmark accurate pricing and on-time deliveries, as well as high quality are also part of the service; but that’s not all
04 April 2022See more
Flattened edges in sheet rolling
In fact, Alinco does a fair amount of rolling work for others. Just cut and roll; the customer then takes care of the subsequent processing such as welding and finishing. No problem, Alinco offers a vast range of options with regard to sheet rolling. With many construction workshops among our customers, it is logical that they would want to take care of the welding themselves.
In that case, please keep the following in mind:
- Centring always produces flattened edges. We always do our best, but since we cannot weld the longitudinal seam ourselves, we don’t have the possibility to either roll it further or hammer it more... Getting that right is in the hands of the workshop that takes over from us.
- The result is not always 100% successful, especially with difficult cones. There, too, it is up to the welder’s skill to pull that right first – the same applies to square rounding.
- Rolling is never 100% dimensionally stable. Especially in the case of thin sheets. If, for example, you bend a rolled sheet with a diameter of 500 mm and thickness of 1.5 mm, and place it immediately on a pallet, the 500 mm diameter has already been slightly elongated into an egg shape.
23 February 2022See more
When ordering or asking for a quotation, indicating the desired finish is important.
Does it have to be perfect? Let us know, keeping in mind that this has cost implications.
However, industrial finishes are always possible, no problem.
Should you desire a perfect finish, consider the following:
- specification of max. roughness value or Ra value
- the desired aesthetic aspect – unidirectional brushing, directionless brushing, mirror polish, pickling or glass bead blasting
- indication of surfaces to be finished – single-sided, double-sided – need to trim the cutting edges (for a 1.5 mm thick sheet, this may not be necessary, but may well be for a 10 mm thick sheet)
- possible post-treatment – electropolishing
20 November 2021See more
Update on the (rising) price of materials
Since the beginning of 2021, material prices have suddenly started to shoot up, which has taken the market by surprise, as everyone expected challenging economic times and prices that would be under pressure.
The prices of steel, stainless steel and aluminium have only been on an upward trend since then, and we haven’t seen the end of these price increases yet.
The reason for the price increases is a combination of factors that seem to reinforce each other. Of course, many things are correlated. Here’s an overview:
- huge investments and recovery plans on a global scale increase the demand for all metals and trigger a mismatch between supply and demand in general
- a still disrupted supply of materials due to sea transport with very costly shipments from Asia
- mines and factories that have been shut down by the pandemic
- producers who expected demand to drop because of Covid-19, so they decided to produce less
- a number of large production sites that have been downsized and/or closed down
- specific to stainless steel: the high nickel prices, which used to be the biggest predictor of price fluctuations. This still has a limited impact, but no more than that. The share of steel, an important element in stainless steel, has never played a role in the past, but with the expensive steel prices, the price of stainless steel has, of course, also risen accordingly
- changes in quotas, import taxes and subsidies at a global level. In the past, exports were heavily subsidised by Asia/China, but this is no longer the case, and there are still fairly strict quotas for the import of Asian materials, which are simply exhausted for a large part of the year
- longer delivery terms, which further pushes up demand because companies suddenly have to be more pro-active and stock up earlier. You currently have to wait weeks/months for some materials, whereas you used to have the materials within a few days; promised/confirmed orders;
- traders who have recently seen their stocks plummet and who prefer not to sell for that reason, i.e. offer their goods at inflated prices. Moreover, a number of traders probably simply bought fewer materials at the start of the price increases, based on the opinion of various traders at the beginning of the year who argued that the question is not if prices will go down but when and who told me that they did not want to buy too much material at these expensive prices only to sell again at a loss;
- general scarcity on the world market, supply and demand;
24 September 2021See more
Project in the spotlight: trolley with braking system
A great project that illustrates Alinco’s versatility once again.
The contract involved making 5 trolleys for large vessels for a pharmaceutical customer abroad. The safety issue that needed to be resolved was that mainly female staff should be able to drive around with carts carrying 500 to 1000 litre tanks. Once these trolleys start moving, they can no longer be stopped using ‘manpower’ alone. Conventional wheels with brakes therefore did not provide a solution.
20 May 2021See more
Plate rolling or perhaps bending work?
What do you think? The sheets in the attached photo are 8 mm thick. Are they rolled or folded?
If I tell you that a sheet is 8 mm thick…
Think about it from a technical viewpoint: thick sheets should always be rolled on a sturdy plate bending roll - i.e. larger rolls. There is no standard length plate rolling machine with rolls of e.g. 150 mm that can roll an 8 mm sheet... So yes, we folded these sheets using our special bending technique and did not roll them.
Time and again we need to convince prospects that bending segments into shape may not necessarily produce visible and folds... Obviously, if the segment does not go sufficiently through the folding process, it will be angular. Consequently, when preparing a quotation, it is important to check how many folds are required over the entire circumference. Creating a perfectly round shape is however possible.
25 April 2021See more
Carts and cabinets
Stainless steel furniture, carts and cabinets are one of Alinco’s specialisations.
These are made based either on the customer’s drawing, or measurements taken on site, or on a sketch made by the customer. In this case, one or several drawings may be presented to the customer for approval.
16 December 2019See more
Alinco manufactures pharmaceutical furniture regularly. Since we provide tailor-made solutions, everything can be adjusted to your wishes. You can submit your own design or, in consultation with you as a customer, we can develop a design to meet your specific needs.
The piece that you see here is a FIFO cabinet on wheels with transparent sliding doors for the high-quality storage of DN25 valves. It was designed by Alinco at the customer’s request. The valves are suspended in the rail system with dividers. These illustrate the precise bending work provided by Alinco. This cabinet meets all the customer’s specific requirements, such as hygiene standards, stability, accessibility of the rails, possibility to extend the number of shelves, and so forth.
24 October 2019See more
Focus on fine finish
Alinco offers its customers a wide range of finishing options. Today, we would like to highlight one of our specialties: very fine finish. The cone shown in attachment is destined for the pharmaceutical industry; its outer surface is brushed, while the inner side is mirror polished.
29 November 2018See more
Focus on Alinco
Alinco has been the key reference in the field of sheet metal work for many years now. Thanks to our comprehensive range of machines, we are able to handle practically all types of machining operations. To deliver fair and high-quality customized products is our goal, and in aiming at precisely that, we highly value the principles of correct processing of stainless steels primarily. Stainless steel is cut on copper bearers. Our enthusiastic team of 50 experienced and highly qualified professionals is ready and willing to realize your projects. We distinguish ourselves from our competitors in that we can perform the more difficult work and deliver fine finish, but of course we can also handle the simple and/or industrial work. Alinco concentrates on sectors such as pharmaceuticals, food, industry, machine construction… We can either provide you with designs or work on the basis of your own plans. You can contact us for piecework, for small and medium-sized series but also for large projects.
Karine De Bie
23 July 2018
Customers often ask us for the ‘passivation’ or ‘chemical passivation’ of their products, while they actually mean pickling.
Passivation without pickling is not helpful. Passivation is in fact the process of forming the self-repairing layer of active stainless steel that comes in contact with the air. Suppose you cut through a 5 mm sheet. After being cut, the sheet’s 5 mm cross-section becomes ‘free’ for the first time, as the self-repairing corrosion-resistant layer of the stainless steel has not yet formed. It takes a few hours and this is a process that only starts when the bare material is exposed to the air. The process is called passivation, and can be accelerated with the help of a passivation product, but this will only speed up the process.
20 April 2018See more
Plasma keyhole welding installation
Our sister company Deprest recently added a plasma keyhole welding installation to its equipment.
In plasma keyhole welding, instead of being bevelled, the plates are tightly clamped together. Quite simply put, the material is fused together, as it were, at a very high temperature. The process is suitable for welding together plates or tubes up to 8 mm.
13 April 2018See more
Corrosion and surface treatment of welded joints
In the early 1990’s, the NIL (Dutch Welding Institute) conducted extensive research (Source: NIL) on the effects of various standard treatments on the corrosion resistance of welds; you will find an interesting article in attachment.
Welding produces a brown, rust-like discoloration. In order to get rid of this discoloration, pickling, glass blasting, or any type of brushing or sanding treatment is applied, sometimes hot.
18 July 2017See more
Focus on safety mirrors
A stainless steel safety mirror is a perfect alternative to a glass mirror. Mirror quality, with a slightly different look, but perfect as a mirror.
Since the mirror is not made of glass, but from a solid stainless steel plate, there is no risk of shards.
01 May 2017See more
Galvanic corrosion forms when 2 different metallic materials are combined within the same component. This can lead to an anode/cathode reaction, and accelerated corrosion of the less noble material. The latter may then suffer a corrosion rate far higher than that to be expected without any contact with the nobler partner material.
08 September 2016See more
Plate rolling or press brake?
Alinco has a whole range of plate rolling machines that give us the technical ability to roll sheet, cones and other reducers. You can find an overview of our plate rolling machines here. Our sister company, Deprest, also has a number of plate rolling machines which are more suitable for thicker work (they roll plate to a thickness of 40 mm). However, plate rolling has its limitations. For thicker plate, for example, for 8 mm and up, you won’t find any plate rolling machines that can centre these plates at smaller diameters. In the case of 8 mm, you need a lot of force and you can’t do that with 50 mm rollers. Even a fairly long roller bench won’t have small rollers.
A classic example here are cones. These sometimes tend to go down to small diameters. Take a cone that goes from 500 mm to 100 mm with a length of 1000 mm and a wall thickness of 6 mm. There’s no other choice than to make the cone in 2 parts and fold these instead of rolling them, and these are manufactured using segment folds. There are many folds close to each other so you get a more or less round shape. If you do this using the right folding tool, it goes fairly well.
14 March 2015See more
Stainless Steel Super Mirror 8
Alinco regularly works with mirror stainless steel of the highest quality: super mirror 8. This is top grade mirror stainless steel that really reflects and shows absolutely no distortion. This is not to be confused with BA (Bright Annealed) grade which is also sold on the market as mirror stainless steel but is actually much less reflective and does have dull spots and the like.
Top-quality super mirror 8 is not cheap, admittedly, but is really a very attractive plate. We always stick to the same high quality from the same manufacturer. I was surprised recently to learn that some dealers also offer super mirror 8 at prices that seem very interesting.
20 January 2015See more
What causes current increase of stainless steel prices?
In previous newsletters, we have regularly drawn attention to how the price of stainless steel is rising these days. The price rises have been with us for several weeks already and there are expectations that they will continue to increase over coming weeks and months. It is difficult for the moment to predict where the price of stainless steel will peak but there is no doubt it will rise considerably.
But aside from knowing that they will rise, it it sometimes interesting to reflect on the reasons for these prise rises for stainless steel.
05 June 2014See more