What Is Pre-Crimped Wire?

Pre-crimped wire is wire that has been bent or corrugated at precise, evenly spaced intervals before it is woven into screen cloth, ensuring uniform aperture sizes and consistent wire spacing across the entire woven mesh surface for vibratory screening applications. Pre-crimping is the standard manufacturing method for coarse mesh woven wire screens (approximately 2 mesh to 30 mesh) where the heavy-gauge wire cannot be accurately crimped by the weaving loom alone.

The pre-crimping process runs each wire through a crimping machine that forms controlled bends at exact intervals matching the desired mesh pitch. When the pre-crimped wires are then woven together on the loom, each crimp falls precisely at a wire intersection, locking the mesh into a stable pattern with uniform openings. This is far more reliable than attempting to form the crimps during weaving, where loom tension variations and wire springback can produce inconsistent bend locations, especially in heavy wire gauges used for coarse screening.

Pre-Crimped Wire Specifications

Why Pre-Crimped Wire Matters in Vibratory Screening

Pre-crimping delivers benefits that directly impact screening accuracy, screen life, and operational reliability:

• Uniform apertures for accurate grading — In aggregate classification, mining, and industrial screening, product specifications define the maximum allowable particle size. Pre-crimped wire ensures every aperture across the screen meets that specification, preventing oversize contamination of the undersize product.
• Superior mesh stability — The precisely formed crimps lock each wire intersection securely, preventing wire migration under the constant vibration and material impact in a vibratory screener. This stability is especially important at coarse mesh sizes where heavy wire carries significant kinetic energy from the vibrating screen.
• Compatibility with specialty crimps — Pre-crimping is the foundation for intercrimp (lock crimp) and flat top weave patterns. These specialty crimp styles require the crimps to be formed with specific profiles and spacing that can only be achieved in a dedicated pre-crimping operation.
• Longer screen life — Uniform crimps distribute stress evenly across all wire intersections rather than concentrating it at poorly formed junctions. This even stress distribution reduces fatigue cracking and extends the working life of the screen.

Pre-crimped wire screens are used on vibratory equipment from Sweco, Kason, Midwestern Industries, Cleveland Vibratory, Rotex, and ScreenerKing, as well as on static grizzlies and trommel screens.

Related Glossary Terms

• Crimp — The bend in wire that locks screen intersections
• Intercrimp / Lock Crimp — Extra crimps between intersections for rigidity
• Flat Top Weave — Smooth-surface crimp that reduces blinding
• Plain Weave — Standard over-one, under-one weave pattern
• Aperture — The opening size in woven wire screen
• Wire Diameter — The thickness of screen wire

Pre-Crimped Wire FAQs

What is pre-crimped wire mesh used for?

Pre-crimped wire mesh is the standard construction for coarse woven wire screens used in vibratory screening, typically 2 mesh to 30 mesh. It is used in aggregate screening, mining, industrial scalping, grading, and any application where consistent aperture sizes in coarse mesh are critical.

What is the difference between pre-crimped wire and weave-crimped wire?

Pre-crimped wire is crimped on a separate machine before weaving. The crimp pattern is set independently, allowing precise control over depth, pitch, and uniformity. Weave-crimped (loom-crimped) wire has bends formed during the weaving process. Pre-crimped wire produces more uniform apertures, especially in coarse mesh sizes with heavy wire.

Does pre-crimped wire mesh cost more than standard wire mesh?

Pre-crimped wire mesh costs slightly more due to the additional crimping step. However, at coarse mesh sizes where pre-crimping is standard practice, the cost difference is already built into standard pricing. The improved aperture consistency and mesh stability deliver value that outweighs any small cost premium.