HLK Heavy Duty Standard Adjustable Welding Rotator by Bolt
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HLK Heavy Duty Standard Adjustable Welding Rotator by Bolt

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The loading capacity of 160Ton and above, for standard large turning roll that can be up to 1000Ton, for special made at present is max. 2000Ton, are all classified as heavy duty weld rotator. This is what the adjustable by bolt product stands out from the other two types of self-adjustable and adjustable by leadscrew, that only can it fulfilling the challenging task of large tonnage.


To achieve the task of heavy loading, two components of these heavy duty turn roller play critical role:

    1. Bolt:

     1) It is fasteners for a set of standard roller bed adjusting with bolt, which subject to great force;

     2) All these bolts are made of high-strength steel, making sufficient intensity;

     3) Its size varies with tonnage of equipment, large rolling beds are secured with bigger bolts;

     4) Under normal condition, these bolts have same length of service life as equipment itself;

    2. Roller:

      - All the rollers of large turning roller with tonnage higher than 160Ton are fit with fully metallic roller. To be

       specific, these rollers are made of alloy nodular cast iron, with good heat-resistant performance.


Use of Heavy duty Welding Rotator adjustable by bolt:

     1. Anti-Drift Welding Rotator

     1) As discussed before, hydraulic Jack-up rolling bed, or anti-drifting rolling bed, are made from 60~600Ton of

        roller bed adjusting by bolt. Majority of this coincides with heavy duty weld rotator;

     2) These anti-drifting turn rollers are often used in national-level big project, for example, in China, Oil and gas

        transmission pipeline from West to East;

     2. Offshore Wind Tower

       -  As an emerging industry, the build up of wind tower involves utilization of heavy-duty welding rotators by

          bolt;

     3. Oil Tank

       - As a kind of special container, welding of oil tank involves using of high quality heavy duty welding rotators,

         especially anti-drift welding rotator.


 Precautions for Use in Application of Large Turning roll:

    1) Some of large rolling bed is put outdoors. Give protection on it against infiltration of rain, wind, etc.;

    2) Workpiece operated with large turning roller is generally big and heavy. Before loading it onto the 

       equipment, make sure its smooth surface of barrel body, no sharp particles retained;

    3) Take great care on no bumping happened in the process of workpiece loading.


Below are specifications of HLK-series standard Heavy duty Automatic Adjustable Welding Rotator with bolt:

Model

HLK160

HLK250

HLK400

HLK500

HLK630

HLK800

HLK1000

Max. loading  (Ton)

160

250

400

500

630

800

1000

Work-piece

D (mm)

ø1000

~6000

ø1000

~7500

ø1000

~7500

ø1000

~8000

ø1000

~8500

ø1500

~9000

ø1500

~10000

PU roller (mm)

D1

Metallic rollers are used for large-tonnage roller bed

W1

Metallic roller (mm)

D2

620

700

800

800

850

1000

1000

W2

220

260

300

300

350

350

350

Linear speed (m/h)

6 ~ 60

Motor power( kW)

2×4

2×5.5

2×5.5

2×5.5

2×7.5

2×7.5

2×11

 


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