*Heavy duty torque multiplier
*Strong,safe Anti Wind-Up ratchet
*Easy to adjust reaction arm position
*Different ratio options.
*Alloy steel constructure for heavy duty use.
*Strong,safe Anti Wind-Up Ratchet available for more than 1500N.m multiplier for safe and comfortable operation.
*Easy to adjust reaction arm position.
Reaction Arm Weight
Torque Multiplier Photos
What is torque multiplier
A torque multiplier is a tool used to provide a mechanical advantage in applying torque to turn bolts, nuts or other items designed to be actuated by application of torque, such as the actuation of valves, particularly where there are relatively high
Torque multipliers typically employ an epicyclic gear train having one or more stages. Each stage of gearing multiplies the torque applied. In the epicyclic gear systems, torque is applied to the input gear or ‘sun’ gear. A number of planet gears are
arranged around and engaged with this sun gear, and therefore rotate. The outside casing of the multiplier, is also engaged with the planet gear teeth, but is prevented from rotating by means of a reaction arm, causing the planet gears to orbit
around the sun gear. The planet gears are held in a ‘planetary’ carrier which also holds the output drive shaft, therefore as the planet gears orbit around the sun gear, the carrier and so the output shaft rotates. Without the reaction arm to prevent
rotation of the outer casing, the output shaft cannot apply torque.
Along with the multiplication of torque, there is a decrease in rotational speed of the output shaft compared to the input shaft. This decrease in speed is inversely proportional to the increase in torque. For example, a torque multiplier with a rating of
3:1 will turn its output shaft with three times the torque, but at one third the speed, of the input shaft. However, due to friction and other inefficiencies in the mechanism, the output torque is slightly lower than the theoretical output.
How to use a torque multiplier
1, Attach a suitable socket to the output male drive of the multiplier, then insert the socket onto the fasterner to be torqued.
2, Make sure that the reaction bar is in a secure contact with the equipment being worked on, and that the reaction bar will not damage any portion of the equipment.
3, Change the direction lever to desired direction - see drawing. (not applicable to multipliers below 1500 Nm)
4, Attach suitable torque wrench to the female input of the multiplier
5, Apply torque. It might take several revolutions before resistance it felt, and if possible, you can "spin" the wrench for faster
action. When resistance is felt, apply torque in a slow and steady manner. Refer to applicable torque wrench instructions
for proper operation and indication when desired torque has been reached. Stop applying torque at this point.
6, Carefully change the direction with the direction lever. Turn in reverse until there is no more force on the reaction bar (not applicable to multipliers below 1500Nm).
7, If you accidentally overload the fastener being torqued, you must losen it first, then re-torque per the above instructions
Why should you cooperate with NovaTork?
Shanghai UB Machinery Co., Ltd is a high-tech enterprise in China and a leading manufacturer and distributor of torque products including mechanical and electronic wrenches, testers, multipliers and calibration equipment.
Our modern 40,000 square meters factory is located conveniently to both downtown Shanghai and Pudong International Airport in Fengxian, Qianqiao Industrial Garden Zone near Hangzhou Bay. It is equipped with precision standard and custom-made machinery and equipment, and is staffed by professional engineers, experienced managers and highly trained production and inspection personnel. The Factory's ISO 9001 accreditation and a dedication to continuous product and quality improvement is the key to producing world-class torque products that comply with international standard ISO 6789 and U.S. standard ASME B107.14-2004.
Our products have been developed in close association with Mr. Jan S. Stasiek of the United States of America, who has over 40 years of proven and successful experience in the field of torque technology.After graduating from the University of California at Los Angeles, Mr. Stasiek held top engineering and managerial positions in leading tool-manufacturing companies including Utica Tool Company, JS Technology, and Danaher Tool Group. He is a member of American Society of Mechanical Engineers, and a former chairman of Hand Tool's Institute's Torque Wrench Standards Committee.
Our goal is to provide our customers with quality torque products, timely deliveries, attractive pricing, and superior service.
This information was Verified by Bureau Veritas and is valid for the following period:
2014/09/24 --- 2015/09/23
The information below covers both the Gold Supplier and its related companies, which are
defined according to china laws and regulations, and which will also be clearly displayed in the full report >>
The competitive advantage of product line:
The products mainly export Europe and North American. The company has passed the ISO9001:2008. The company can provide the ODM and OEM service, also accept the customized products production.
Shanghai UB Machinery Co., Ltd is a high-tech enterprise and a leading manufacturer and distributor of torque products including mechanical and electronic wrenches, testers, multipliers and calibration equipment.
Our factory is located in the beautiful Qianqiao Industrial Zone, Fengxian, covering a factory area of 40,000sqm. Our factory has owned advanced manufacture equipment and precise inspecting and testing equipment. We have formed complete functional, high-technical precision p...