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FAQ FRO ANGLE STRAIGHTENING MACHINE

  • Q Which Function Units are equipped in Wuxi JACK Sheet Metal Steel Plate Butt Joint Welding Machine?

    A One set of Wuxi JACK MP series steel plate Flat Butt Welder machine includes below 5 major function cells:
    1. 1) Mechanical main frame: Fixed double sides acting gantry beam/ overhead platform/ Individual welding table;
    2. 2) Melt-thru welding unit: Welding torch/ welding power supply and control consoles/ welding supplementary elements;
    3. 3) Beveling unit: Oxygen fuel flame triple cutting unit, including thermal gas conduits and regulating panel;
    4. 4) Input and output conveyors;
    5. 5) Controlling and assistant systems: Electric/ Hydraulic system / Cooling water circulating system/ pneumatic system.


  • Q What does Product Name “Steel Plate Flat Butt Welding Machine” Refer to? And Its Usage for Customers?

    A
    1. 1) Because 2 pieces of raw material: Sheet metal, will be joint into an integral larger and longer piece, in the form of “butt welding” in 180° connection flat position. This is machine name implies;
    2. 2) Benefitting from this challenging task, customers can acquire larger size of sheet metal, from smaller ones;
    3. 3) Majority conditions, customers want to get longer sheet metal from shorter pieces.

  • Q Which Specifications of Sheet Metals can be Joint in Steel Plate Joint Welding Machine?

    A
    1. 1) As its name suggests, most majority of sheet metal for joint are steel plates, especially carbon steel;
    2. 2) The applicable thickness of these steel plates is from 6mm to 40mm;
    3. 3) In theory, any width range of sheet metal can be joint in Steel Plate Butt Joining Machine;
    4. 4) In practical application, sheet metal Plate Joint Welding Machine are divided based on its max. workpiece width: From MP20 (Max. width 2000mm) to MP50.
     

  • Q What are Technical Superiorities of Wuxi JACK Steel Plate Butt Joining Welding Machine?

    A
    1. 1) Patent Technology Melt-Thru: This means only Wuxi JACK has capability to deliver stable and high standard butt welding performance for customers. “Butt welding” means one side welding on the 2 pieces of joint steel plate, and welding seam will be formed in strong intensity with fully penetration;
    2. 2) Multi-Functional Arrangement: For workpiece thickness from 15mm to 40mm, 0°~ 45° angle Y shape groove should be beveled ahead of time before fully penetration welding. In Wuxi JACK machine, Oxygen fuel thermal triple cutting unit is equipped, thus helps customers saving investment on specific beveling equipment.

  • Q Why Investment on Wuxi JACK Steel Plate Butt Joining Welding Machine Can Bring Great Financial Benefit for Customers?

    A By introducing Wuxi JACK Flat Butt Welding Machine, customers can:
    1. 1) Reducing number of operators on plate joint job;
    2. 2) Remove potential safety risk on personnel and equipment;
    3. 3) Improve production efficiency 2.5 times;
    4. 4) Acquire consistent controllable plate butt joining effect


  • Q What are Technical Superiorities of Wuxi JACK CNC Pipe Plasma Flame Cutting Machine?

    A Wuxi JACK is leading company in industry to provide various designs and models of CNC machine. In terms of CNC Pipe Cutting Machine, by March year 2026, Maybe we do not have the largest selling volume, but we produce the best quality machines for customers. Here the “best” refer to:
    1. 1) CNC control axis can be not only frequently adopted 3/ 5 Axis in industries, but also more challenging 6/ 7 Axis, which embodies technical strength of Wuxi JACK;
    2. 2) High efficiency and high precision of pipe cutting for clients, advanced design and delicate craftmanship produced cutting torch mechanism;
    3. 3) Safe, easy and convenient operation for everyday operation on CNC Pipe Cutting Machine;
    4. 4) Modular mechanical strength, control technology on hardware and software, available for upgrade with technique advancement;
    5. 5) Compared with some other Chinese producers, the material/ craftmanship of our parts/ assemblies have far more better quality and durable performance.

  • Q What is Service Life of Wuxi JACK Plasma Flame CNC Pipe Cutting Machine?

    A Operate and service properly, one set of Wuxi JACK CNC Pipe Plasma Flame Cutting Machine can promise stable and high level performance for over 10 years, to 15 years or even longer;
    The critical preconditions to acquire such ideal service life are:
    1. 1) Manufacturing engineers of customer facility should complete technical documents for operation and management on flame plasma CNC Pipe Cutting Machine: FMEA (Failure mode effect analysis), control plan, standard work instruction, by means of teamwork before official put into use of CNC Pipe Cutting Machine;
    2. 2) Operator should be qualified: Operator should be trained and tested before on duty, with sufficient experience on operating CNC machines, skill on thermal cutting;
    3. 3) Operate the machine everyday according to manual book of machine from Wuxi JACK;
    4. 4) Maintenance team should set up proper TPM (Total preventative maintenance plan) ahead of time, and implement the TPM strictly;
    5. 5) Machine Overhaul after every 5 years use: Besides, as sophisticated machinery incorporating software and hardware state-of-art technique, especially 6 and 7 axis large machines. For example, in end of year 2018, a set of Wuxi JACK CNC-CP7-3000/12 model large 7 axis CNC Pipe Cutting Machine was delivered to a petrochemical customer, based in Texas U.S.A. In Spring of year 2024, after the first 5 years use, customer is very satisfied with machine performance, and asked Wuxi JACK engineer to go to customer facility again, to have overhaul, software and hardware upgrade on this machine.

  • Q What is finished edge rounding radius on steel plate and H Beam flange, from Edge Rounding and Trimming Machine?

    A
    1. 1) This is an important topic between customers and supplier, during technical communication. For example, in October 2025 and January 2026, during Wuxi JACK engineers communicate with an Indian customer and Belgium customer on Edge Rounding Machine, one of the focus is finished edge rounding radius on workpiece;
    2. 2) The allowable finished edge rounding radius is from R2.5mm to R2.0mm. The reason here we mention R2.5mm first is, it is more easy to attain than R2.0mm, and can meet customer requirement under majority conditions;
    3. 3) In the case of strict requirement, and operate properly, Wuxi JACK Edge Rounding Machine can realize edge rounding radius of R2.0mm. This is the bottom limit of feasible operation;
    4. 4) The Indian customer asked for R1.5mm edge rounding radius in October 2025, which can not attain currently under existing technique.

  • Q What are Running Cost Factors of RH1500 to RH3000 Large Plate Edge Rounding Machine?

    A As a kind of sophisticated large machinery incorporating electricity, hydraulic oil and gas cylinder, the variable cost on daily operation of the machine can be mainly listed as:
    1. 1) Electricity, the machine power is around 10.6kW;
    2. 2) Hydraulic oil and mechanical oil, which should be replaced periodically, according to suggestion from Wuxi JACK engineers, and presented in machine manual book;
    3. 3) Edge Rounding Roller: There are totally 4 pieces in one set of Edge Rounding Machine. This is the only consumable, which need to be checked on its prime condition, and replaced if necessary when growing worn out. The general level of service life of each edge rounding roller, is it can serve on around totally 50,000m edge rounding length along edge of steel plate and H Beam flange.

  • Q Is it necessary to act on all the 3 pieces of downward press rollers of RH1500 to RH3000 Large Plate Edge Rounding Machine?

    A Not necessary all the time. To simply operation and in turn raise productivity, the quantity of acting downward press roller depends on width of steel plate:
    1. 1) All the 3 pieces of press rollers: Only when steel plate width is the scope of 2,500mm to 3,000mm (Correspond with RH2500 to RH3000 models), do all the 3 pieces of pressing rollers move downward, to hold on the wide plate reliably and keeping flat;
    2. 2) Only the middle piece of press roller: When steel plate width is less than 1,400mm (Correspond with RH1500 model), just need to drive down the center one of press roller;
    3. 3) 2 pieces of press rollers: When steel plate width is the range of 1,400mm to 2,500mm (Correspond with RH1500 to RH2500 models), 2 pieces of downward press rollers are necessary to hold the steel plate, of which the center one is a must, together with the left or right one press roller, depending on position of steel plate on edge rounding cavity;
    Summing up, the center one of press roller is always necessary during operation of the RH1500 to RH3000 Large Plate Edge Rounding Machine.

  • Q How to Maintain Stable Operation of Edge Rounding and Trimming Machine?

    A
    1. 1) Machine Quality: First, as a technique based professional company started by 3 senior engineers in March 2009, Wuxi JACK always attach importance on safe operation and machine quality as our 1st priority. The entire design, validation and production value chain is managed strictly. Superior quality equals to reputation of Wuxi JACK;
    2. 2) Machine Performance: Although with complicated structure, Edge Rounding Machine has simple operation logic. It is controlled with A.C. relays, instead of PLC. In other words, we eliminate malfunction points as much as possible, to make sure stable and reliable operation with long service life;
    3. 3) Customer Use: Together with machine delivery, Wuxi JACK engineers give detailed instruction on operation, daily maintenance and common seen trouble shooting on the machine;
    4. 4) After Sale Service: Wuxi JACK promises 13 months guarantee period from machine delivery, and give free of charge technical support, during the entire life long operation of machine.

  • Q Is it Safe to Operate on Wuxi JACK Edge Rounding Machine?

    A The answer is definitely YES.
    1. 1) Safety Hazard Elimination: The machine has enclosed BOX frame, with edge rounding rollers being installed inside the BOX frame. So, it is difficult for operators to get access on edge rounding rollers, thus eliminate the greatest operation risk;
    2. 2) Emergency STOP: Besides, at both infeed and outfeed sides of machine main frame, there are both Emergency STOP buttons, which is easy for reach by operators, in case of contingency happens;
    3. 3) Precaution Zone: In addition, there should be leave out forbidden zone for operators of Edge Rounding and Trimming Machine, in the area of 3,000mm (3m) length, ahead of and right following machine main frame (Edge rounding zone).

  • Q From Customer Perspective, how to select Proper Welding Groove Processing Machine?

    A There are 4 types of machines which can be used for cutting out welding grooves on steel plate:
    1. 1) Edge Milling Machine: The most widely applied, which has advantages of extensive plate size, from 1,000mm to 18,000mm. There are variations on configuration of the machine, including quantity of milling head, stroke of edge milling, control mode (HMI Human machine interface), etc.;
    2. 2) CNC Flame Triple Cutting Machine: The advantage is low cost, in terms of both machine price and daily running cost. The disadvantage is rough cutting kerf, which need to have cutting kerf trimmed off after flame triple cut;
    3. 3) Hobbing Cutter (Rolling Shear Chamfering Machine): The advantage is compact size and reasonable price. The disadvantage is this equipment is applicable for processing on small plate, especially small width plate. For conventional medium to large steel plate, it can only be processed with Edge Milling Machine, which has high precision cut groove;
    Summing up, which types of Welding Groove Processing Machine is the best choice for customer, depends on below factors of:
    1. 1) Size range of sheet metal plate;
    2. 2) Budget level;
    3. 3) Demand on welding groove cut out roughness.

  • Q For Operation on Hobbing Cutter (Rolling Shear Chamfering Machine), which Support Unit is Important and Necessary?

    A
    1. 1) As shown in videos of this page, a worktable with height as operator waist is very useful for operation convenience: Workpiece (Small plate) can be put onto this work table;
    2. 2) By means of pushing into these small plates into the equipment, and pulling out the beveled small plate out of the equipment, operator work on the entire process with the most labor saving job and high efficiency.

  • Q In terms of technical topics between customer and Wuxi JACK engineering team on I Beam and H Beam Flange Edge Rounding Machine, what is the most impressive topic over the past 2 decades, from Year 2009 to now (February 2026)?

    A Undoubtedly, the most impressive one is scope of workpiece (I Beam and H Beam) specifications, that can be edge rounded. The 2 cases that is worthwhile to mention here are:
    1. 1) In April 2023, a Singapore customer communicated with Wuxi JACK on HR800 model I H Beam Flange Edge Rounding Machine. The focus between both sides is the minimum size of H Beam that can be edge rounded: The conventional specification on minimum of flange thickness is 10mm, and 8mm under special design. Which means, the 8mm thickness/ 100mm flange width is the lower limit of workpiece size; Customer wanted to have the machine capable of edge rounding on H Beam with flange the minimum thickness of 6mm. Accordingly, according to Wuxi JACK engineer, slant angle of edge roller is around 10°, it should be 15° to available on edge rounding smaller H Beam. Correspondingly, edge rounding roller should be larger;
    2. 2) In beginning of February 2026, a west European customer contacted with Wuxi JACK, on I Beam H Beam Flange Edge Rounding Machine, for series of large projects which will kicked off in year 2027. Customer gave us list of all European standard I Beams and H Beams, which is planned to be processed. On that basis, Wuxi JACK engineer identify the workpiece list one by one, and gave customer response on whether our Flange Edge Rounding Machine can cover all the workpieces customer raised, and which sizes of I H Beam can be edge rounded, which can not be edge rounded, because of too small width and thickness of I H Beam flange.

  • Q What do Customers Care on Technical Service on End Plate Trimming Machine?

    A Take the same west European customer who communicates with Wuxi JACK in February 2026 as example, below are questions raised by customer on technical service on the European standard I Beam H Beam Flange Edge Rounding Machine:
    1. 1) What is freight cost to ship to customer city port, and also install the machine in customer workshop and give training to operators? Customer can unload using overhead cranes at their workshop;
    2. 2) What is cost of import taxes on the machine? 
    3. 3) How much time is needed to transport and install in customer workshop? 
    4. 4) What is cost and delivery times for a complete set of consumables and edge rounding rollers? 
    5. 5) Are there partners in customer country, for maintenance and repair of the I Beam H Beam Flange Edge Rounding Machine? 
    6. 6) Response time for a service intervention? 
    7. 7) How much maintenance does the machine require?

  • Q What are Consumables for Running on Steel Plate and I H Beam Flange Edge Rounding Machine?

    A
    1. 1) Although with complicated structure and energy source, the machine daily operation cost is low. It only has one type of consumables: The 4 pieces of edge rounding rollers;
    2. 2) Operated and maintained properly, expected service life of each piece of edge rounding rollers is around 50,000m edge rounding length;
    3. 3) Process technology: These edge rounding rollers are solid type, made of 35CrMo tool steel, finely machined in machining center, then tempered integrally, and have its surface quenched, making sure its stable and durable long time performance.

  • Q Is it Safe to Operate on Wuxi JACK I Beam H Beam Flange and Metal Steel Plate Edge Rounding Machine?

    A
    1. 1) Any automatic machine exists certain potential risk on operation and service, if not carried out carefully and properly. On the other hand, safety is the foremost factor to be taken for both customer and supplier, especially heavy duty mechanical equipment. This is always tenet of Wuxi JACK engineers developing our machines;
    2. 2) For this RH series End Plate Trimming Machine, the deburring and edge rounding speed of 7200mm/min. is fairly fast, and operator working around it should take precaution;
    3. 3) So, what is the Design of Wuxi JACK Edge Rounding Machine for Safety Purpose?
    1. a) The design of the mechanical structure makes edge rounding unit is located at middle of the machine mechanical frame. Which means, it is difficult to have direct access to working area of the machine by operators;
    2. b) Besides, to have a double insurance, we have Emergency Stop buttons deployed at both inlet and outlet side of machine main frame;
    3. c) Alarm lights and limit switches are also installed at eye catching position, and at ends of execution unit movement stroke.

  • Q Why there are 4 sets of LHC H Beam Welding Machine in automatic H Beam Production Line, but only 1 set of T Beam H Beam Assembly Machine?

    A Because in operating pace of automatic H Beam Production Line, welding station is bottle neck:
    1. 1) The SAW submerged arc welding speed is in the range of 100- 1000mm/min., and one set of LHC H Beam Welding Machine welds on one seam at one moment;
    2. 2) Comparatively, in H Beam Assembly and CO2 Tack Welding Machine, the assembly speed is in the range of 240- 2400mm/min., and one set of assembly machine welds on two seams at any moment;
    To align assembly speed with SAW welding speed into same level, so as to acquire ideal line balance rate (85% plus) and smooth material flow, there are 4 sets of H Beam Welding Machine in H Beam Production Line, and only one set of T Beam H Beam Assembly Machine to work with.

  • Q Besides Standard Functions of Assembly and CO2 Tack Welding, are there any Variations with Configurations of T Beam H Beam Assembly Machine, to get More Flexible Choice on Operation at Customer Facility?

    A Yes. This is the request often raised by customers, so as to not only get the best utilization of machine, but also optimal financial return on investment. For example:
    1. 1) In August 2025 year, when a Cambodian customer planned to purchase 2 sets of Z15 H Beam Assembly and CO2 Tack Welding Machine from Wuxi JACK, they requested the machines not only to be equipped with conventional CO2 tack welding function, but also with SAW continuous welding ability. For this reason, each one set of the machine is equipped with 4 sets of welding power supplies: 2 sets of 500A GMAW welding machine, and 2 sets of 1000A single arc SAW welding machine. This helps the machine with multiple choice on welding mode and applicable H Beams for production. These 2 sets of Z15 model T Beam H Beam Assembly Machine are scheduled to be shipped to Sihanouk at end of January, 2026 by sea transportation;
    2. 2) Also in early January 2026 year, when an Indian customer had technical communication with Wuxi JACK engineer on the machine, he raised the same request. The customer expectation is to have the machine not only capable of producing semi-finished welding H Beam of large size, but also be able to produce finished welding H Beam directly with 500A GMAW welding machine, in the form of continuous CO2 gas shielded welding;
    3. 3) Besides, Wuxi JACK engineers can also propose the T Beam H Beam Assembly Machine to be equipped with Twin arc/ Tandem arc SAW welding machines. In this way, in the case of continuous SAW or GMAW welding, the welding speed can be doubled compared with conventional single arc welding mode, so as to acquire on double productivity on H Beam Production Line.

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