Maren balers have long been regarded as the standard of the box, printing, and process industries. The Maren ProPAK-A Series takes that standard to an even higher level — built specifically for the difficult duty cycle required in corrugated box, folding carton, printing, converting, envelope, and tissue industries. For high-volume operations where bale weight, uptime, durability, safety, serviceability, and cleanliness matter, the ProPAK-A Series delivers, with multiple horsepower options and several hopper sizes to fit virtually any production requirement.
- Bale sizes 36″–42″ wide × 42″ high × variable length, up to 2,500 lbs; advanced automatic 6-wire bale tier.
- Interlocking chassis and ram of high-strength plate steel — stress is absorbed by interlocked plate, not welds alone.
- Advanced progressive shear-blade design with 30″ penetration reduces shear jams; replaceable double-edge hardened tool-steel blades.
- High-strength steel-plate floor reinforced with replaceable AR400 abrasion-resistant wear liner.
- Main ram guided/sealed by long-wearing NylOil wear plates; spring-loaded AR400 scraper seals the top.
- Electronically interlocked, padlockable chassis service door.
- Maren’s exclusive key-lock main-cylinder mount.
- Optional electric hoist wire-loading boom.
| Spec | Value |
|---|---|
| Feed Opening – Width | 33.5″ or 39.5″ |
| Feed Opening – Length | 48″ or 64″ |
| Feed Opening – Depth | 42″ |
| Main Cylinder | 8″ |
| Operating Pressure | 4200 PSI |
| Ram Force | 211,115 lbs |
| Baling Force | 140 PSI (36 wide) / 120 PSI (42 wide) |
| Horsepower Options | Single 20/30, Twin 20/30 |
| No Load Cycle Time | 12–27 secs |
| No Load Displacement | up to 16,065 cf/hr |
| Bale Size | 36×42 or 42×42 × variable |
| Typical Bale Density | OCC 32 #/cf |
- 10.4″ Allen-Bradley PanelView touchscreen; status display with graphic bale-percentage progress bar.
- Selects saved per-material settings (bale length, photo-eye options, etc.).
- Dual-motor models: operator selects pump A or B, or automatic on-demand second motor.
- Stores machine faults / E-stop status with a fault-history log; optional conveyor controls.
- Password protection separates run-time features from service-only adjustments.











