Metal Recycling, Scrap Processing & Salvage calculator

Shear/baler throughput Calculator

Shear/Baler Throughput estimates how many good, sellable units a guillotine shear or baler will actually produce in a shift after machine downtime and reject losses are taken out. Plant managers and production planners at scrap processing and salvage yards use it to commit tonnage to buyers, schedule trucking and spot where capacity is leaking. The trap is quoting gross machine capacity and forgetting that a hydraulic stall, a wire jam or an out-of-spec bale all subtract from what you can ship. This calculator turns nameplate cycles into a defensible good-output number with the losses shown line by line.

What this calculator does

  • Estimate shear/baler throughput for metal recycling, scrap processing and salvage using production-ready inputs so teams can confirm whether capacity can cover demand before committing the schedule.
  • Use it when shear/baler throughput in metal recycling, scrap processing and salvage is being asked to take on more work and you need to know if there is room.
  • It multiplies output per cycle by available cycles for gross capacity, then applies uptime and first-pass yield to give good, shippable units.

Formula used

  • Gross shear/baler throughput capacity = shear/baler throughput output per cycle × available shear/baler throughput cycles
  • Good shear/baler throughput capacity = gross capacity × expected shear/baler throughput uptime × expected shear/baler throughput first-pass yield

Inputs explained

  • Material processed per shear/baler cycle:
  • Cycles available this shift:
  • Shear/baler uptime:
  • First-pass yield (clean bales):

How to use the result

  • Use it to commit shift output to a customer, plan truck loads, or quantify how much capacity downtime and rejects are costing.
  • Uptime and yield are estimates from history; a single major breakdown or a run of contaminated feed can move actual output far from the prediction.

Current U.S. benchmarks

  • The producer price index for steel mill products stands at 348.53 (BLS, May 2026), up 6.7% from a year earlier. Quotes priced off last quarter's material cost miss this move.
  • U.S. iron and steel imports ran $2.1B in May 2026 (Census International Trade). The U.S. ran a trade deficit of $0.4B in the category that month. Import volumes are the pressure gauge behind tariff and reshoring decisions.

Common questions

  • How do you calculate good baler output per shift? Multiply output per cycle by available cycles for gross capacity, then multiply by uptime and first-pass yield. Here 4 × 480 = 1,920 gross, and 1,920 × 0.90 × 0.97 = 1,676 good units.
  • What is first-pass yield on a shear or baler? The share of cycles that produce a bale or cut meeting spec the first time, without rework or downgrade. At 97% yield, 3% of capacity — about 52 units here — is lost to rejects.
  • What's the difference between gross and good capacity? Gross capacity (1,920) is what the machine could make if it never stopped and never rejected. Good capacity (1,676) is what you can actually ship after uptime and yield losses.
  • How much is downtime costing my throughput? In the example, 10% downtime removes 192 units before yield is even considered. Each point of uptime recovered is worth roughly 19 sellable units a shift here.
  • What is a good uptime for a baler? Well-maintained balers and shears often run 85-92% uptime; below 80% usually points to hydraulics, wire feed or feed-side starvation. The example uses 90%.

Last reviewed 2026-05-12.