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FAQ FRO ANGLE STRAIGHTENING MACHINE

  • Q How to Cut out Lower Bevel with General Purpose Single Head Steel Plate Beveling Machine?

    A Way of accomplishing steel plate bottom edge bevel effect: If it is necessary to mill lower edge bevel with single head machine,
    1. 1) The first stroke is to mill out straight edge bevel along steel plate;
    2. 2) The second stroke of edge milling is for cutting out upper bevel, with required beveling angle;
    3. 3) Then, the workpiece (Steel plate) should be pulled out of the machine, flipped upside down 180°, and loaded into the machine worktable again. Adjust position of steel plate by means of hydraulic jacks and plate fender. This time, the 3rd stroke of the lower bevel will be cut in the way of upper bevel edge milling;
    Summing up, to cut out straight/ upper/ lower bevel with single head Steel Plate Edge Beveler Milling Machine, it will take longer time and involves more complicated work, and entail operator skill and experience. For this reason, when it is often necessary to have lower beveling, customer had better select double heads configuration models of Steel Plate Beveling Machine.

  • Q What are Consumables and Spare Parts for Operating on General Purpose Steel Plate Milling Edge Machine?

    A
    1. 1) The consumables on edge milling are:
    Facer blade tip, which has the highest consumption;
    Following that is cutter head, which has common seen sizes from Φ125mm to Φ320mm. The most common is Φ200mm, which is our configuration for ex-factory delivery;
    1. 2) As to spare parts of machine, take a customer order in the 1st half of July 2026 as example. When this East European customer placed order on a SXBJ6 steel plate Bevel Edge Milling Machine, they asked us (Wuxi JACK engineers) to consider not only machine itself, but also below function units as spare parts as well:
    1. a) The 7.5kW HD750 milling head;
    2. b) The horizontal HIWIN precise linear guiderails;
    3. c) The motor reducer for driving on horizontal movement of milling head carriage;
    This customer is old customer of Wuxi JACK, the 3rd time buying machine from us following 2 times business in year 2025. After one year use, they not only have full trust on quality and performance of our products steel plate Milling Edge Machine, but also knows for their working condition of heavy workload each day, which components should be prepared as maintenance backup.

  • Q Now that there are many different types of Welding Groove Processing Equipment, what is USP- Unique Selling Point of Steel Plate Edge Milling Machine? Why customers decide to buy this machine, instead of other types?

    A Nowadays, Edge Milling Machine is the most extensive applied equipment on steel plate beveling. It has overall advantages compared with the 1st generation product of Edge Planer Machine, and contemporary other beveling machines:
    1. 1) Saving money: Lower price and daily running cost, compared with Edge Planer Machine;
    2. 2) High productivity and smooth bevels, compared with flame triple cutting;
    3. 3) Applicable for all sizes of steel plate, not only small ones, but more important, larger ones, compared with Rolling Shear Beveling Machine;
    In other words, there is no weak points with Edge Milling Machine, working as Welding Groove Processing Equipment. With over 20 years development, this machine technology grows mature, with user friendly operations and multiple choices for customers.

  • Q What is service life of Wuxi JACK Steel Plate Edge Milling Machine? How long will it take to recoup the investment?

    A
    1. 1) Operated and serviced properly, it is no problem to acquire 10 to 15 high level and stable performance of our machine. And, we suggest the machine to be overhauled thoroughly every 3 to 5 years, especially for running sites of heavy workload, namely 2 shifts per day, or over 6 working days per week. This can extend service life of the steel Plate Edge Miller machine, with the least level of expenditure;
    2. 2) As for payback date of the machine, because usage property of this machine is assistant on machining welding grooves, not produce finished products directly, we can only calculate on the basis of comparison with outsourcing on steel plate beveling, suppose without this machine. Generally speaking, 2 to 3 years can help customer get the machine investment pay back. This is only on aspect of financial return;
    3. 3) Besides, after buying Steel Plate Beveling Machine, steel plate beveling quality can be fully controlled, which is vital for finished product quality assurance.

  • Q How to judge quality of Steel Plate Edge Miller Machine from user perspective, when investigating on potential suppliers?

    A This is the question often considered by Wuxi JACK staff also, when introducing our machines to potential customers. There is market segmentation, that different customers emphasize on different factors: Some customers take more stress on machine price, some customers take quality as the 1st priority. Of course, no one will deny the products with both reasonable price, and exceeding performance;
    From professional viewpoint, the critical factors judging quality of an Edge Milling Machine:
    1. 1. Milling head: At early stages of this machine, many companies select 5.5kW head. Wuxi JACK always insist on equip 7.5kW heads to maintain higher productivity. And these years more advanced 9.3kW /11kW milling heads are equipped, for customers with higher demand on beveling efficiency;
    2. 2. Guiderails of Milling Head: Wuxi JACK uses HIWIN linear guiderail, made of stainless steel alloy, the top selection in industry, for upper level of guiderails in our Edge Milling Machine. The installation way is by means of bolts assembly; The lower level guiderails is rectangular heavy type. This fully guarantee stable and smooth movement of milling head during operation;
    3. 3. Comparatively, many companies use ordinary carbon steel guiderails, which largely reduce manufacturing cost of machine, but sacrifice edge milling operation as cost;
    4. 4. Mechanical Frame:
    1. 1) Dimension of Wuxi JACK steel plate Edge Milling Machine is 10% to 20% larger than that of other companies, which gives more strength and rigidity of machine mechanical body, and thus withstanding powerful beveling operation;
    2. 2) After 1st operation cut, bending and fabrication, mechanical frame will be strictly heat treated, to have welding stress relief, and strengthen on strength of main machine;
    1. 5. Hydraulic Pump Station and Valves:
    1. 1) Many companies use integrated pump station, being installed inside mechanical base bed of their Steel Plate Beveling Machine. Such way of arrangement is not good for heat dissipation, which easily lead to malfunction, although this can reduce manufacturing cost of machine, but it is at the expense of customer benefits; Besides, these companies use valve plates plugged with valve cores, which has lower cost, and difficult for later service;
    2. 2) As comparison, Wuxi JACK adopts independent hydraulic pump station, which is put alongside main machine of our steel Plate Edge Miller machine. Although this raises manufacturing cost of our machine, it makes sure convenient operation and service, and high level stable performance of hydraulic system as well; Besides, our hydraulic valves are individual stack valves, which, although with higher manufacturing cost, but guarantees high quality and consistent performance, and convenient for regular service.

  • Q When plan to purchase Steel Plate Beveling Machine, which points should be considered?

    A Although different customers and suppliers have different way of communication, below basic steps are unavoidable and critical:
    1. 1) Customer inform producing company requirement on plate beveling: The max. length and thickness of steel plate, type and angle of groove. Besides, width of steel plate is also important;
    2. 2) Wuxi JACK engineers propose the proper proposals to customer accordingly. Customer check whether proposal meet their requirement, including machine performance, configuration and price;
    3. 3) There maybe numerous communications between both sides, on topics of detailed technical and financial requirement. Finally, customer and supplier can explore the ideal proposal;
    4. 4) Technical Prepare: Approaching delivery of Steel Plate Beveling Machine, Wuxi JACK will prepare complete set of technical documents for customer, including: Machine foundation, layout, electric diagram, hydraulic diagram, installation and commissioning guide. Customers can prepare on machine installation accordingly.

  • Q What is significance on introducing these 2 news products (Elderly Care Robot and Automatic Welding Carriage Tractor), now that it is still not in batch production stage, but rather just completed pilot by year 2026?

    A
    1. 1) These new products explore new growth point of Wuxi JACK. As know, to survive through fierce competition, a company can not always rely on existing mature products, not even only on competitive advantageous products, but always keep alert technical trend and the latest development of industry;
    2. 2) Ever since company start up by 3 senior engineers in March 2009, Wuxi JACK always keep developing new products into market, based on feedback from customers on their need. And many new products have become featured products and new growth points of Wuxi JACK, such as Plate Butt Welding Machine in year 2016, Plate and H Beam Edge Rounding Machine in year 2020;
    3. 3) We believe this time the 2 news products which are developed with 2 renowned Chinese Universities, the Elderly Care Robot with academy of Mechanical and Electric Engineering of UESTC, and Automatic Welding Carriage Tractor with academy of Material Science and Engineering of LUT, will not only bring mutual benefits to both sides, fully making use of collaboration combining both parties strengths in the field of in practical production/ academic research and teaching, but also brings more practical value to market.


  • Q What is Potential Application Target Field of Automatic Welding Carriage Tractor?

    A
    1. 1) As a highly flexible, compact and specialized welding unit, this Automatic Welding Trolley has broad using field, such as:
    2. 2) Internal circumferential welding on tanks with length with over 20m long, which is difficult to be fulfilled with traditional horizontal boom of welding manipulator;
    3. 3) Dangerous or harmful or not so friendly operating environment, which is not applicable for human access, or difficult to access, such as working site with high moisture/ poisonous gas/ Explosive gas/ wild environment. At these working sites, even welding robot is not a good choice;
    4. 4) Replaced with different welding heads and power supply, this Automatic Welding Carriage Tractor can be used for trial on different welding modes and technologies, in welding technique laboratory, or companies.

  • Q Besides the above listed BOX Beam Welding Production Machine, what are other machines, equipment and tools necessary prepare, for kicking off BOX Beam Welding Production Line?

    A There are totally 35 stations in complete set of BOX Beam Welding Production Line. Besides the machines listed above, below are other necessary BOX Beam Welding Production Machines:
    1. 1) Lineation table for confirming on positions of baffle plates, and hole cutting;
    2. 2) Edge Milling Machine: For cutting out 0° - ±45° welding grooves on main plates of BOX Beam;
    3. 3) Welding seam test: Ultrasonic testing machine;
    4. 4) Clearing on electroslag welding gate and riser: Carbon gouge;
    5. 5) BOX Beam Longitudinal Straightening: Horizontal Press Straightening Machine;
    6. 6) BOX Beam surface clean: Shot Blasting Machine

  • Q What are Total Power of Machines in BOX Beam Welding Production Line, especially large current heavy duty BOX SAW Beam Welding Machine?

    A
    1. 1. The set up of entire BOX Beam Welding Production Line definitely involves careful prepare on workshop utility, especially electricity capacity. In all, installing all the major BOX Beam Welding Production Machines being introduced in this page need total power of:
    1. 1) Either 2 sets of 800KVA transformer for tandem arc (9KW＋240KVA×2, 63A＋250A×4 air breaker) BOX SAW Beam Welding Machine;
    2. 2) Or 2 sets of 1000KVA transformer for triple arc (9KW＋385KVA×2, 63A＋250A×6 air breaker) BOX SAW Beam Welding Machine;
    1. 2. Wuxi JACK engineers will give customer detailed list of electricity capacity and necessary air breaker for each set of BOX Beam Welding Production Machine, before customer prepare on the workshop of our BOX Beam Welding Production Line;
    2. 3. For example, for installing one set of UBZ12/ UBZ15 model U Beam BOX Beam Assembly and Tack Welding Machine, it needs electricity capacity of 15.4KW+25.6KVA, and air breaker of 63A×3.

  • Q Which Brands Wuxi JACK select, on various welding power supplies being equipped with our BOX Beam Welding Production Line, especially the core equipment of BOX SAW Beam Welding Machine?

    A
    1. 1) 20 years ago, in the year before 2010, the various modes of welding power supplies were usually selected from overseas famous brand, to make sure quality and performance on BOX Beam welding at different stations. For example, American Lincoln (DC1000A plus AC1200A in the condition of tandem arc SAW) for our BOX SAW Beam Welding Machine, and Japan OTC SESNET-WT for BOX Beam electroslag welding;
    2. 2) Over the past 10- 15 years, with the rapid development of Chinese suppliers technique on welding, nowadays by year 2026, all the welding power supplies in our Wuxi JACK production line, especially the most important one BOX SAW Beam Welding Machine, can be sourced from Chinese top grade professional suppliers: HUAYUAN, AOTAI, under different customer requirement and practical condition. These Chinese welding power supplies have stable and top grade performance, and much reasonable price than overseas brands, which promise more benefits and profits for customers.

  • Q How Many Operators are Necessary for Building Up and Running on Wuxi JACK BOX Beam Welding Production Line?

    A
    1. 1) Compared with H Beam production, BOX Beam production is obviously more complicated, with more work stations and machine involved;
    2. 2) Depending on customer budget and MGPP (Multiple Generation Product Plan) and layout, there are 12 to 35 types and sets of BOX Beam Welding Production Machines, which need to be installed and operated. Correspondingly, each machine needs one to two veteran operators to work on;
    3. 3) Summing up, the single shift of welding BOX Beam production needs 20 to 60 operators working on, excluding logistic team for material replenish and convey;
    4. 4) Operators work on different station entails related skills. For example, for working on the most important BOX SAW Beam Welding Machine, operator should be familiar with managing on automatic machines; Welding experience on adjusting welding wires, welding torches, judging welding quality, etc.;
    5. 5) Besides, there should be also a team of profession service, to make sure fluent operation of the entire BOX Beam Welding Production Line. By means of TPM (Total Preventive Management), to make sure these machines have as short shutdown as possible. And in case of malfunction happens, to overhaul the machine, and resume operation with the quickest response.

  • 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 Beveling 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.

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