Frozen lines · Sweet corn

Sweet Corn Processing Line for Frozen and Canned Kernels

A complete Bigtem sweet corn line: truck reception, husk loosening, husking, nubbin separation, automatic cutting, kernel washing and aspiration, blanching and IQF freezing or canning.

  • Heavy-duty reception hopper and layer shaker
  • Huskers with waste conveyors
  • Automatic corn cutters with hand-feed cutters for rejects
  • Belt or steam blanching, never water dipped
Bigtem automatic corn cutter with vision system and control panel
Bigtem automatic corn cutter, the core machine of a sweet corn line.

Line flow

Sweet corn line flowEight steps: truck reception, husk loosening in a wilting tunnel, husking, nubbin separation, automatic cutting, kernel washing and aspiration, blanching, then IQF freezing or canning.1Receivetruck hopper2Wiltloosen husks3Huskhuskers4Nubbinseparation5Cutauto cutters6Cleanwash & aspirate7Blanchbelt or steam8Freeze or canIQF or retortSweet corn line flow1Receivetruck hopper2Wiltloosen husks3Huskhuskers4Nubbinseparation5Cutauto cutters6Cleanwash & aspirate7Blanchbelt or steam8Freeze or canIQF or retort

How the line works

Cobs are dumped from trucks into a heavy-duty hopper and fed evenly over a layer shaker into a tunnel that loosens the husks. Elevators and distribution conveyors feed the huskers, where husking rolls grip and peel the husks off. Short cobs and nubbins are separated out.

An index feeder delivers selected cobs to the automatic corn cutters. Kernels go through a flotation washer and aspiration cleaner, then to blanching and cooling ahead of IQF freezing, or to canning.

Bigtem automatic corn cutter with vision-based rejection. Video has no audio.

Questions

Why are kernels steam blanched instead of water dipped?

Multi-zone belt or steam blanching heats kernels gradually without soaking them, which protects sweetness and texture.

What happens to husks, cobs and rejects?

Husks, cut cobs and nubbins are collected on waste conveyors and can be crushed for animal feed.

What happens to cobs the auto cutters reject?

They go to hand-feed cutters, so good kernels are recovered.

How is the line sized?

By the number of cobs per hour you need. Each automatic cutter runs up to 130 ears per minute (Bigtem brochure), and several run in parallel.

Related: Automatic corn cutter · Sweet corn applications · Blanchers

Tell us your crop, capacity and timeline

A Bigtem USA engineer will review your project and follow up with a recommended configuration and a utilities outline.