Finishing & Embellishment
CMT‑330 Trimmers
The Challenge CMT 330 is a fully-automatic three-knife book trimmer engineered for efficient finishing of perfect-bound books. It handles sizes up to roughly 330×330 mm, and book thicknesses up to 51 mm. With servo-controlled adjustments and digital memory for up to 99 jobs, size changes take under 6 seconds. Hydraulic cutting ensures strong, clean cuts, while multiple feeding options (inline or near-line) support both continuous and on-demand workflows. Designed for bookshops, finishing departments, or on-demand book production, the CMT 330 delivers fast, precise trimming with minimal setup and high throughput.
Brand
Challenge
Models
Product Specification
CMT‑330 Trimmers
| Book trimming type | Three-knife automatic book trimmer |
| Max starting book size | 330 × 330 mm |
| Max finished book size | 307 × 328 mm |
| Min finished book size | 148 × 100 mm |
| Book thickness range | From ~0.1 in (≈ 2.5 mm) up to 2 in (≈ 51 mm) |
| Max stack (block) thickness for cut | ~50 mm |
| Top trim (fore-edge trim) capacity | Up to ~152 mm |
| Memory capacity (jobs) | Up to 99 stored jobs |
| Changeover time (book size change) | Under 6 seconds |
| Production throughput | Up to ~750 books/hour (multi-book mode) |
| Waste bin capacity | Two bins ~53 L each + one bin ~163 L |
| Blade re-grind allowance | Up to 6.4 mm (¼ in) |
| Air consumption (for pneumatic/clamp/air-blast) | ~255 L/min at ~5.8 bar |
| Minimum book height (trimmed) | ~100 mm |
| Controls | Digital / servo-controlled knife & clamp positioning |
| Feeding modes | Inline or near-line feeding from binder or pile-feeder |
| Cutting method / Power | Hydraulic cutting and clamping |
| Knife & table support design | Heavy-duty knife assembly and stable table support to minimize deflection |
