Bench Top Wrap Tester

Spring Wire Diameter Range:

• .050" to .375"
• 1,27 mm to 9,5 mm

Machine Dimensions:

• Width: 28″ (71cm)
  
  
• Length: 52″ (132cm)
  
  
• Height: 22″ (56cm)
  
  
• Weight: 400 lbs. (182 kg)

Mandrels and mandrel support bushings are not supplied as part of the standard machine but can be supplied optionally upon request. Mandrel diameters are dependent upon the exact wire diameter being tested and what specification is required for wrapping around a mandrel of 1x to 4x the diameter of the wire.

The Wrap Tester is engineered for optimal performance, accommodating mandrel diameters from .050" to 1.5" or 1.27 mm to 38 mm.

Ensure to note your requirement for mandrels spacers and bushings, and the sizes required on your form, or when speaking with a member of the Sjogren Team.

Two standard drive units offer 50Hz and 60Hz with .5hp constant speed motors.

There is also a 124:1 gear reducer that drives the rotating chuck at an approximate speed of 13.9 RPM.

A limit switch positioned to the rear of the sliding carriage de-energizes the motor after the carriage has passed, ending the wrap cycle. A limit switch mounted above the chuck prevents machine operation if the guard is not closed.

An interlocked guard keeps any flying metal from ejecting outside of the front of the machine during testing, ensuring operator safety.

Note there is a viewing window on the cover that is not shown in the interactive model. 

With easy operation and optimal interchangeable mandrel set up, there are also two operational modes to ensure you get the most out of your wrap testing for absolute quality of your product.

Mode 1 utilizes the wire guide bushing in the tooling block and the wire much me drawn completely through the bushing. 

Mode 2* eliminates the use of the wire guide bushing and utilizes the slotted opening of the guide bar on the tooling block to support the wire during wrapping.

*The wrapping cycle must be manually stopped before the wire sample is pulled completely through the guide bar, and then Forward/Reverse switch is used to safely remove the built up spring pressure in the wire so it can be removed from the machine.

Wire guide assembly is mounted to a sliding carriage to support mandrel and control sample wrap spacing