1) When: After the large current SAW (Submerged arc welding) performed at the previous station H Beam SAW Welding Machine;
2) What: Flanges of fabricated H Beam will have upturned deformation due to the effect of heat input, checking at cross section of the H Beam;
3) Which: This should be corrected to guarantee its performance, by means of the I H Beam Flange Straightening Machine, shown in below photo:
1) In addition to flange deformation, there is also certain degree of winding along length direction of H Beam;
2) This should be straightened in case of exceeding tolerance. The task is accomplished with H Beam Horizontal Press Straightening Machine, shown in below photo:
1) Based on driving mode (A.C. motor or hydraulic oil cylinder) and specific models of I H Beam Flange Straightening Machine,
2) The maximum flange thickness available for being straightened can be up to 40mm/ 50mm/ 60mm, and 80mm respectively in different models of I H Beam Straightening Machine;
The corresponding Chinese grades of H Beam carbon steel suitable for different models of I H Beam Straightening Machine are:
1) Q235, tensile strength in the range of: 370~ 510 MPa;
2) Q345, tensile strength in the range of: 510~ 600 MPa;
3. For quick understanding this superior product of us, please visit thematic web page of “Review on Wuxi JACK I H Beam Straightening Machine”.
1) This is mainstream of H Beam Straightening Machine;
The lefthand scrolling photos: Working elements and units of Wuxi JACK I H Beam Flange Straightening Machine
Include:
1) Straightening Cell, which is composed of three pieces of high strength solid straightening rollers. Of which, the two smaller rollers are in the upper position in symmetry, and the larger roller is in the bottom position;
a) This is for accommodating changing width of H Beam flange;
b) It works in the way of manual handwheel for mechanical motorized I H Beam Straightening Machine,
c) And oil cylinder drive for hydraulic drive I H Beam Straightening Machine;
a) This is the mounting base for the 2 pieces of upper straightening rollers, and sliding channel of straightening driving force transmission;
b) There are 2 pieces of shaft boxes in a set of I H Beam Straightening Machine;
a) This consists of slotting table for adjusting distance between the 2 pieces of upper straightening rollers at bottom;
b) All the above mentioned working elements of the I H Beam Straightening Machine are installed on it.
1) In mechanical motor drive I H Beam Straightening Machine, this is 2 sets of 1.5kW A.C. motor;
2) In hydraulic drive I H Beam Straightening Machine, this is 2 pieces of custom-made oil cylinder;
3) Either the A.C. motors or oil cylinders are installed right above the shaft boxes.
Both conveyors are idle type: After H Beam is hoisted onto input conveyor of the I H Beam Flange Straightening Machine, the sending forward of the H Beam during straightening operation is driven with A.C. cycloidal motor installed on machine main frame.
A set of Hydraulic drive YTJ-50 (Maximum straightening capacity is 50mm flange thickness for Q345 carbon steel, tensile strength 600 MPa) I H Beam Flange Straightening Machine works at a Chinese Steel Structure workshop:
1) Applicable workpieces area for straightening;
2) Workpiece orientation;
3) Diving mode on straightening,
1) HYJ series Mechanical Motor Drive Vertical I H Beam Flange Straightening Machine;
2) YTJ series Hydraulic Drive Vertical I H Beam Flange Straightening Machine;
3) WJ series Horizontal I H Beam Flange Straightening Machine;
4) HJ series I H Beam Horizontal Press Straightening Machine
1) Vital Importance: HYJ series takes majority application of I H Beam Flange Straightening Machine, over 60% in practical use;
a) Applicable Straightening Material: Chinese Q235 carbon steel, with tensile strength of 370~ 510MPa;
b) Max. Straightening Thickness: 40mm;
3) Standard Models: HYJ-40 and HYJ-800 motor drive I H Beam Flange Straightening Machine. The difference between the two models is straightening speed: 17m/min. versus 9m/min.
Model of Mechanical I H Beam Flange Straightening Machine | HYJ40/ HYJ800 |
Straightening Power Source | A.C. motor |
Straightening Material | Q235, Tensile strength 370~510MPa |
Flange Thickness (s) | 6 ~ 40 mm |
Flange Width (b) | 200 ~ 800 mm |
Web Thickness (a) | ≤40 mm |
Web Height (h) | 200 ~ 1,500 mm |
H Beam Length | 4,000 ~ 12,000 mm |
Straighten Speed | ≈9000/ 17000 mm/min. |
Main Motor Power | 7.5/ 22 kW |
1) Heavy duty: YTJ series hydraulic oil cylinder drive I H Beam Flange Straightening Machine has over 2 times straightening capacity compared with HYJ mechanical motor drive type;
a) Applicable Straightening Material: Chinese Q345 carbon steel, with tensile strength of 510~ 600MPa;
b) Max. Straightening Thickness: From 40mm up to 80mm, which is really heavy duty I H Beam Straightening Machine;
3) 4 Standard Models: YTJ-40/ YTJ-50/ YTJ-60, and YTJ-80 hydraulic drive I H Beam Flange Straightening Machine, differed based on the largest straightening thickness: 40mm/ 50mm/ 60mm/ 80mm respectively.
Models of Hydraulic I H Beam Flange Straightening Machine | YTJ40/ 50/ 60/ 80 |
Straightening Power Source | Hydraulic Pump station |
H Beam Material Tensile Strength | 510~600MPa |
H Beam Flange Thickness (s) | 6 ~ 40/ 50/ 60/ 80 mm |
Flange Width (b) | YTJ40/50/60: 200 ~ 800 mm; YTJ80: 300 ~ 1200 mm |
Web Thickness (a) | ≤40 / 50/ 60/ 60 mm |
Web Height (h) | YTJ40/50/60: ≈ 9000 mm/ min.; YTJ80: ≈ 6300 mm/ min. |
Straightening Speed | YTJ40/50/60: 200 ~ 1500 mm; YTJ80: 500 ~ 2500 mm |
a) Workpiece Orientation: H Beam laying flat, instead of standing upright;
b) Workpiece Quantity: 2 pieces of H Beam being straightened at the same time, instead of 1 piece at any time;
Takes much less share than HYJ and YTJ series vertical type. The reason may lie in:
a) Obviously Higher Price: It has double times straightening efficiency compared with HYJ and YTJ series vertical type, and 40%~ 50% higher quotation than HYJ and YTJ series I H Beam Straightening Machine;
b) No Need Higher Productivity: However, straightening speed is already much quicker than assembly and welding working station in H Beam Production Line. So, this is not a plus for selecting proper model of I H Beam Straightening Machine;
3) Straightening Capacity of Horizontal I H Beam Flange Straightening Machine is lighter than YTJ series hydraulic drive vertical type: Up to 40mm thickness for Q235 material;
4) 2 Standard Models: WJ25 and WJ40 Horizontal I H Beam Flange Straightening Machine.
Models of Horizontal H Beam Straightening Machine | WJ25/ WJ40 |
Straightening Speed | 6000 mm/min. |
Straightening Drive Motor | 7.5kW* 2 sets / 15kW* 2 sets |
Straightening Drive Torque | 5600N.m. * 2 sets / 11000N.m. * 2 sets |
Hydraulic Pressure | 16 MPa |
Roller Lift type | By motor and reducer |
Hydraulic Station Power | 7.5 kW |
Input Roller Table Power | 2.2kW * 2 sets |
Output Roller Table Power | 2.2kW * 2 sets |
1) Suitable for All Steel Structure Members: Not only H Beam, but also BOX Beam/ Section Steels, and any other structure members with square or rectangular cross section can be straightened in I H Beam Horizontal Press Straightening Machine. The lefthand 2nd photo shows a piece of BOX Beam being straightened;
2) Workpiece Position: During work, workpiece lay in horizontal position in the I H Beam Horizontal Press Straightening Machine, as shown in the 1st photo;
3) Working Theory: In essence, I H Beam Horizontal Press Straightening Machine is a hydraulic drive Press. This is the reason its model is distinguished on the max. straightening force delivered, instead of workpiece specifications;
4) Straightening Capacity: Meanwhile, there is rule of thumb on operating the I H Beam Horizontal Press Straightening Machine, indicating the relationship between output straightening force and related H Beam specifications;
5) 4 Models: HJ20/ HJ100/ HJ200/ HJ300 I H Beam Horizontal Press Straightening Machine.
Model of I H Beam Horizontal Press Straightening Machine | HJ20/ HJ100/ HJ200 /HJ300 |
Max. Tonnage of Press | 20/ 100/ 200 / 300 Ton |
Applicable Workpiece | Welding H Beam/ BOX Beam/ Section Steel/ Structure Member |
Straightening Speed | No Continuous Speed, Step by Step |
H Beam Flange Width | 200/ 400/ 500/ 600 mm |
H Beam Web Height | 400 / 500/ 600/ 800 mm |
H Beam Web Thickness | 10 / 12/ 30/ 32 mm |
H Beam Flange Thickness | 12 / 20/ 35/ 40 mm |
Including:
1) HYJ series vertical orientation mechanical motor drive straightening I H Beam Straightening Machine;