Tension control system






 






(1)     The menu function enables storage and reading of 4 types of operation data.






(2)     The optional memory cassette enables reading of operation data and writing of data in the other STC-858A tension controller.






(3)     The controller has a weak excitation function for powder clutch / powder brake.






This function will improve the torque rising operation in low-speed operation mode or during the initial start-up of machine.

LC Hollow Shaft Tension Load Cell for printing machine






 






LC series hollow shaft auto tension detector






 






Compact, versatile and reliable, the hollow shaft auto tension detector LC offer an alternative to the others manufactured by SUNRISE and are used for hollow shaft assembly application.





The LC  hollow shaft auto tension detector measure the applied force and give an electric proportional signal, repeatable and free from hysteresys, which can be used for any kind of regulation.





LC  hollow shaft auto tension detectors are the product of over 10+ years of experience gained in the field of tension regulation.






 






 






Hollow shaft auto tension detector LC series feature:






 






1.Low hysteresis






2.Temperature compensation


3.Full-bridge strain n resistance


4.Excellent linearity and stability


5.Apply to idler roller and live round roller detecting


6.With maximum overloading to 500% of rated loading

Micro Manual Tension controller STC-001 for printing machine






The TC-001 Series is a compact manual tension controller that provides excitation current for magnetic powder clutches/brakes, hysteresis clutches/ brakes, and more.






It is very suitable for the situation with little current for each channel where a multi-channel tension control is required on a device such as a slitting machine, printing machine, or cable processing.






The manual tension controller is small in size and easy to install.






Installation dimensions
















Function: Tension Controller STC-001


Features:


1) Power supply: DC 26~28V/5A


2) Small size and thin


3) Max. output current can reach 4.00A, adjustable step-in 0.01A


4) No fan for heat dissipation


5) Can record the output current value without operation for 5 seconds


6) With forbid output/ allow output function


7) With short circuit protection


Price: $60/pc


MOQ: 1pc


Payment term: T/T, Western union


Delivery term: EXW


Validity: 10 days


Lead time: 3-7 days


Website: sunrisescn.com

Tension Controllers



Tension and Torque Controllers automatically compensate for changes in roll diameter, speed and other process variables.







What is Web Tension Control ?

Web tension control can be defined as the maintenance of a set amount of web tension (pull or force) for a material being processed. Often measured in oz, lbs, grams, kg, or newtons ¡ª proper tension must be maintained to prevent stretching, wrinkling, breaking or inconsistent registration of material during printing or converting processes.





Web tension control improves uniformity in coating applications and material lamination while decreasing the incidence of rewind defects such as crushed cores, starring and telescoping. When web tension is under control it can enable processes to run at higher speeds while reducing scrap, delivering a rapid return on investment that boosts producers' long term profitability.





Where is web tension control most commonly used?

Web tension control is most commonly used in three zones: Unwind (infeed), Intermediate (process), and Rewind (take up).

In the unwind zone, infeed roll hold-back torque is often controlled by an electric or pneumatic brake. The web strain or tension resulting from this torque is regulated by a closed-loop controller to prevent web drooping, stretching or wrap-up incidents ahead of transiting to the intermediate zone.

Proper maintenance of intermediate zone tension is often critical to ensuring the quality of coating, laminating, curing, treating or slitting processes. This zone is typically controlled by a set of driven nip rollers which dictate line speed to the entire system. This speed reference is matched in the unwind and rewind by virtue of having to accelerate or decelerate in order to maintain a desired tension set point.

Proper tension in the rewind zone ensures under or over-tight rolls and their associated defects are prevented. Rewind zone torque is often controlled by the motor drives of center or surface winders. Implementing progressive taper tension techniques during winding is an effective way to ensure finished rolls maintain spring tension stability and do not experience material shift and core deformation during handling and storage.

From process start to finish, it's clear that reliable web tension control is the key to ensuring maximum system efficiency and quality of finished products.











Typical tension control solutions incorporate:



Sunrise Automatic tension controller such as the LTC-858A,LTC-858A



Sunrise Tension sensor such as LS series or LC series tension sensor



Sunrise A Pneumatic Brake, Magnetic Particle Brake, Clutch