Kuhn Primor 4270 M
Features
WHY CHOOSE A PRIMOR?
Ultimate Versatility
The KUHN Primor machines can process a wide variety of materials that can be used in a multitude of ways. Both round and square bales of a wide range of sizes can be processed for both bedding materials or feed ingredients. Materials from corn stalks to wheat straw, and even to grassy hay can be processed using the multi-function rotor. Processed materials can then be dropped into a feed bunk, blown into a pile, or evenly spread throughout a pen.
Labor Savings
One person can quickly and easily bed multiple pens in a shorter amount of time.
Reliability
Increased blower thickness and the hydraulically disengageable Polydrive® belt system provide greater longevity and little maintenance.
Efficiency
Use fewer materials due to a better and more even distribution. Using a Primor also results in lower costs and lower horsepower than a tub grinder.
Operator Comfort & Safety
The tractor-mounted control box provides easy operation and adjustments directly from the cab. Safely bed pens evenly and efficiently without having to enter the pen.
BELT SYSTEM
The Original & Proven Polydrive® Belt System
The Polydrive is a hydraulically disengageable belt system that drives the feed rotor. It offers several advantages:
- Rotor can be engaged and disengaged separately from the turbine, reducing startup horsepower required. This is important because material is not pulled into the turbine during startup which greatly reduces the risk of plugging.
- Eliminates the need for a shear bolt, making the Polydrive system more reliable and much quieter than a chain drive with virtually no maintenance besides visual inspection.
- Safe use. As the conveyor only moves when the feed rotor is engaged, accidental operations are avoided. The conveyor stops immediately as soon as the feed rotor is disengaged.
Turbine Wheel
The turbine wheel consists of eight blades, two of which are longer than the others in order to generate a speed differential in the turbine and produce a “shower” of straw. The large working area of the broad blades propels the product stream over the entire height of the chute. Straw is therefore blown consistently and evenly from bottom to top without touching the chute.
The turbine on the 4270 M Primor is 50% thicker and features a stainless steel liner to further resist abrasion and add life to your machine. The wider, 67” turbine allows for a high-speed discharge that spreads material up to 60’.
2-Speed Gearbox
The 2-speed gearbox offers a high and low setting of the blower speed allowing you to vary the distance that the product is distributed. The low setting reduces the blow back, which is recommended for feeding and will also work for bedding smaller facilities. For wider distribution bedding, use high speed to achieve maximum range.
Feed Rotor
Driven by the Polydrive system, the feed rotor operates at 400 rpm allowing material to be pulled from the bale without overcutting. This high speed reduces the risk of wrapping long-stranded products and delivers uniform material length and consistency.
The feed rotor, on the 4270 M Primor (shown), is driven by the Polydrive belt drive system with hydraulic engagement, allowing you to regulate the amount of product going into the rotor.
VERSATILE AND SIMPLE
Self-Loading Tailgate
For those of you who store your bales on flat surfaces, round or square bales can be easily loaded using the hydraulically powered tailgate positioned in-line with the conveyor and body designed to load all bale types.
Extra-Wide Body
The extra-wide body and long length of the 4270 M Primor allows for easy loading of any size bale, for bedding or feeding, with a capacity of up to two 5’x6’ round bales or one large square bale up to 4’ x 4’ x 8’.
Simple Hydraulic Controls
For added convenience, a secondary remote is included with the 4270 M Primor to operate the tailgate outside of the cab. For in-cab control, the tractor-mounted control box provides easy operation and adjustments from the cab.
Controlled Delivery
The top swivel chute has a range of 300 degrees to easily direct and control material placement from the cab. Bedding can be blown up to 60’ to the right and 42’ to the left. This is useful for areas with tight corners and difficult access areas. Optional on 2060 M / Standard on 4270 M
Specifications
| Model | PRIMOR 4270 M |
| Volume capacity | 148 ft³ (4.2 m³) |
| Blower style | Turbine |
| Hitch | Drawbar |
| Electro-hydraulic control system | Standard |
| Hydraulic control of adjustable feed regulator (recommended for dual-purpose bedding and feeding applications) |
Standard |
| Second electric remote for rear loading door control | Standard |
| Round bale capability | 2 bales - 5' (1.5 m) wide, up to 6'7" (2.3 m) in diameter |
| Large square bale capability | Up to 8'10" (2.7 m) long |
| CV PTO with slip and overrunning clutch | Standard |
| Blowing distance | 0 - 60' (0 - 18.3 m) on the right and right and 0 - 42' (0 - 12.8 m) on the left |
| Overall length | 16'8" (5.1 m) |
| Machine height - swivel chute extended to the right | 10' (3 m) |
| Width, with chute closed / with chute open | 7'10" / 9'3" (2.4 / 2.8 m) |
| PTO speed | 540 |
| Minimum PTO power requirement | 90 hp (67 kW) for baleage, 70 hp (52 kW) for straw |
| Hydraulic pressure min./max. | 2,175 to 2,755 psi (150 to 190 bar) |
| Hydraulic flow min./max. | 8 to 12 GPM (30 to 60 liters/min) |
| Required tractor hydraulic connections | 1 SA with free return |
| Empty weight | 6,173 lbs (2,800 kg) |
