Double-Chamber Seal-Bar Bag Fit & Hourly Capacity Calculator
Calculate bags per chamber swing, cycles per minute by rotary-vane pump size (63–300 m³/h), and real hourly output across 500, 600, 800, and 1,000 mm vacuum.
Exact Bags-Per-Cycle & Hourly Output Equations
To prevent buying a chamber one size too small inside vacuum sealer sizing and selection and vacuum pump and barrier film specs, run these two steps:
Step 1 — Bags per Swing Cycle: Floor[Seal Bar Length ÷ (Bag Width + 20 mm)] × Number of Usable Seal Bars (note: if Bag Length exceeds half the front-to-back bar spacing, only 1 bar can be loaded full width, or bags must alternate!). Step 2 — Net Packs/Hour: Bags/Cycle × Cycles/Min × 60 × 0.85 Operator Efficiency.
Hourly Output Reference by Pouch Size & Machine Model
Calculated at 2.8 cycles/min (21-sec total cycle with matched pump) and 85% operator pacing:
| Pouch Size (W × L) | DZ-500-2S (2×500 mm) | DC-600-2S (2×600 mm) | DC-800-2S (2×800 mm) | DZ-1000 Belt (1×1000 mm) |
|---|---|---|---|---|
| 160 × 240 mm (500 g steak/fillet) | 4 bags/cyc -> ~570/hr | 6 bags/cyc -> ~855/hr | 8 bags/cyc -> ~1,140/hr | 5 bags/cyc -> ~950/hr (3.7 cpm) |
| 200 × 300 mm (1 kg cut/cheese) | 4 bags/cyc -> ~570/hr | 4 bags/cyc -> ~570/hr | 6 bags/cyc -> ~855/hr | 4 bags/cyc -> ~760/hr |
| 250 × 350 mm (2 kg foodservice) | 2 bags/cyc -> ~285/hr | 4 bags/cyc -> ~570/hr | 6 bags/cyc -> ~855/hr | 3 bags/cyc -> ~570/hr |
| 350 × 500 mm (5 kg primal roast) | 1 bag/cyc -> ~140/hr | 1–2 bags -> ~210/hr | 2 bags/cyc -> ~285/hr | 2 bags/cyc -> ~380/hr |
Notice how on 200 × 300 mm bags, DC-500 and DC-600 both hold 4 bags, whereas DC-800 jumps 50% to 6 bags/cycle! Check barrier film specs next in our vacuum film and MAP shelf-life chart.
Industrial Vacuum Engineering Notes
- Pump Upgrade Cuts 5–7 Seconds per Cycle: Upgrading a DC-800 from a 160 m³/h pump to a 250 m³/h pump trims pump-down by ~6 seconds—adding ~200 extra packs every single hour.
- Belt Sealer Wins on Heavy >3 kg Cuts: Lifting 5 kg primal beef cuts over chamber walls fatigues operators; a flat belt sealer lets workers slide bags horizontally with zero lifting.
- Use Filler Boards Always: Leaving empty chamber headroom unfilled forces the pump to evacuate wasted air on every single swing.
Verify Your Exact Bag W × L Fit
Send your pouch list and target hourly packs via Project Brief.
Explore related platforms in Industrial Vacuum Sealers, Vacuum Pump & Film Specs, or send your pouch sizes & hourly target via Project Brief.
Related Specifications
Further Reference
Verify Dimensions & Operating Ratings
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