Double Sheet or Double Blank Detectors are required in blank destacker, sheet feeder, robot loader, blank washers, blank lubricator, magnetic conveyors, or in the centering station to provide die protection for stamping presses.  Hidden parts detection enable poka yoke verification in body-in-white production. When manufacturing tailor welded blanks - TWBs - undetected double blanks can cause substantial tool damage. Roland Double Metal Detectors for steel, aluminum, or stainless steel blanks are therefore an important precondition for press automation. Fanning magnets can be helpful in the process. Improved gap-tolerant single probe double sheet sensors can be mounted directly into vacuum cups. Non-contact dual head systems are especially well suited for roll forming application,  magnetic transfers as well as mechanical rail transfers.
Roland Double Sheet Detectors have proved their reliability in thousands of installations worldwide.

Weld seam detection in tubes with magnetic flux leakage or eddy current is necessary in pipe and tube benders , or in hydroforming presses when cnc tube bending automotive automotive components. such as exhaust manifolds, head rests, side members, roll bars, or engine cradles. The tube manipulation process involves not only pipe and tube bending but also tube cutting, tube forming, tube punching, tube end forming, and tube notching.

Other applications are the detection and elimination of welds  after coil joining in decoilers, blanking presses, or cut-to-length lines thus enabling the use of lower cost welded coils. A related application is the detection of  weld seams in wires and rods and cable connections in the extrusion process. 

The new high performance sensor NS24 is capable of detecting weld seams in thick walled ERW-tubes for positioning the weld inbetween the ultasonic probes for nondestructive testing.

A special application of weld seam location is the positioning of 55 gallon drums or similar containers for silk screen printing purposes. 

During the production of steel cord reinforced radial tires, several types of spacing defects can occur at the calendar or later at the cutting and splicing operation. The early detection of these faults is the purpose of the ROLAND Steel  Cord Inspection System SIS XP. The SIS XP is an enhanced version of the tried and proven system SIS of which over 30 are installed worldwide in plants of many quality conscious steel belted tire manufacturers. In contrast to X-ray systems, the spacing detector functions according to the magnetic inductive principle and does not require the observance of Health and Safety issues as in the case of X-rays. A new type of the spacing detector can detect spacing faults during the production of green tires in the tire building machine.