For a regular roll forming machines buyer, Chinese equipments always come to mind! Countless Chinese roll forming machine supplier can offer any option with different quality and price. However, it’s really time-energy consuming to find a reliable one.
There are unnumbered metal roll forming equipment suppliers (manufacturers and traders) in China. Don’t feel surprised if you always get a reply after you send your inquiry to any 10 Chinese email address. Not everyone roll forming machine supplier makes offer on the basis of same technical specifications. The quoted prices are always different. Therefore, how to choose a reliable Chinese roll forming machine supplier? To figure it out, you need to really get prepared! It takes your time and energy, sometimes it takes your money as well.
In order to choose a reliable Chinese roll forming machine supplier, you must know well about the below 3 first of all:
- FUNCTION or the PURPOSE: Why, where and when will need that roll former? Is it for one-time project, or for long-run operation?
- WORKING AREAS: If you have limited factory spaces, some roll formers have to be designed and built with different rollforming techniques.
- FINANCIAL BUDGETS: Whatever prices you are looking at on the quotation sheets are subject to the technical specifications of the roll formers quoted. It’s like you have 300$ budget and you cannot expect an iphone 7.
When you have free working areas and obvious purpose to purchase a roll former, you concern about only two things: Quality and Service. The price always stands on one side of the Balance, while quality and service stand the other.
Then you must read the technical specifications in the offer a roll forming machine supplier may quote as below:
De-coilers A Roll Forming Machine Supplier May Offer:
A manual decoiler costs 300-500$, while a semi-auto decoiler or an auto decoiler may cost dozens of times. A manual decoiler consists of welded steel and two bearings; a semi-auto decoiler requires a motor with reducer, and an auto decoiler has motor, hydraulic system, frequency inver, and control unit. Therefore the basic decoiler for a roll former is usually a manual decoiler, and if clients need different, there will be extra charges;
Shafts A Roll Forming Machine Supplier May Offer:
Some Chinese roll forming machine suppliers may quote at an incredibly-low price. It’s possible that you have offers at around 15000$ from five suppliers and 5000$ from the other one! This disparate offer may give you the hollow shafts which shall not exists for any roll formers. And also the difference of shafts’ DIAMETER also indicats different roll former’s prices. FOr example, some factories in northern China (mostly Hebei province) may use shafts of 50/60mm diameter, and someone may use hollow shafts as well for a regular roofing and wall roll forming machine, while in Shanghai, Wuxi, and Hangzhou, a roll forming machine supplier applys the shafts with standard diameter 70mm.
Bearings A Roll Forming Machine Supplier May Offer:
There are incalculable bearing brands in China, and many of them are small workshops which makes low-quality bearings of short service life, but those bearings are really cheap! Thereofre, if you got an offer for an unbelievably-cheap machine from a roll forming machine supplier in China, you need to watch carefully because they might use the bearings made by some small obscure mills. While a good-quality Chinese equipment suppliers usually apply NSK bearings (Japanese bran), or HRB bearings (Top 1 Chinese brand).
Numbers of Stands A Roll Forming Machine Supplier May Offer:
Roll forming machines for different products may have different forming stands. However, for the same product, different Chinese roll forming machine suppliers may quote different stations neither. Different experiences, different roll forming software, and different techniques offer different options on the number of forming stands. Generally, some cheap machines may have less forming stands than required.
Structure of Stands A Roll Forming Machine Supplier May Offer:
There are two different structures for forming stands, i.e. Integral Stands and Individual Stands. Manufacturers always use steel plates to produce Integral stands, and mount the rolling tools between two conjoint steel plates. Individual stands are separate stands welded of steel, and the rolling tools are mounted inside. Roll forming machine supplier produces individual stands by the planer type milling-boring machine. Some manufacturers like to coat decorative chrome on the surface of stands. Different stands’ structures cost different.
Material of Rolling Tools A Roll Forming Machine Supplier May Use:
Different manufacturers use different materials to produce rolling tools. You may notice that a roll forming machine supplier always use different roller materials for roll forming different materials. Usually, they list the roller materials as 45# steel, Gcr15 bearing steel or 40Cr steel. In normal instance, they apply 45# steel as roller material if the feeding materials less than 1.5mm thickness. If the material thickness is more than 2mm, they like to use GCR15 bearing steel to ensure longer life circle.
Machining Accuracy A Roll Forming Machine Supplier May Control:
If the raw material of a rollforming equipment plays 50% of the cost, the details and machining of a roll forming machine can decide 30% of the machine costs (See article HOW DOES MACHINING OPERATION MATTER TO ROLLFORMING SOLUTIONS?).
Transmission of Equipment A Roll Forming Machine Supplier May Offer:
There are three commonest transmission methods for roll forming equipment, i.e: Chain-Sprokets, Worm-Gear, and Coupling Gearbox and Universal Joint-shafts. Each transmission methods will have its own costs (See article WHAT TRANSMISSION IS APPLIED ON YOUR COLD ROLL FORMING EQUIPMENT?).
Motor A Roll Forming Machine Supplier May Offer:
Different roll forming machine suppliers may apply different motor power based on their experience and costs saving. Therefore you may need to compare motor power and brands when reading different quotation sheets.
There are some other parts that may cause different quoted prices! For example, different Chinese roll forming machine supplier may offer different service and warranty. A client needs to compare the technical parameters from different quotation sheets and needs more talk with suppliers regarding their service as well.
MAXON®, as a reputable Chinese roll forming machine supplier, can design and build fine roll forming machines exactly as per clients’ requirements. Please visit our Roll Forming Machine page to know more about our products, or you can visit our Youtube Channel to see the trial running of our machines.