Overview

This document provides detailed technical information and specifications for a range of agricultural and landscape maintenance machinery, specifically focusing on various models of UNI mowers, flail mowers, and large area mowers produced by Gerhard Dücker GmbH & Co. KG. The equipment is designed for mowing, mulching, and shredding tasks across different terrains and vegetation types.

1. Product Range and Applications

• PMK Uni Mower: Designed for steep slopes, suitable as a front attachment for special slope carrier vehicles. Features lateral oscillation and optimal mowing head guidance.
• UMT Series (10, 13, 15, 18): Compact universal mowers for small to municipal tractors (from 13 kW/18 HP). Available in multiple working widths (1.00 m to 1.80 m). Can be rear, front, or combined attachments. Resistant to foreign bodies and capable of mowing various vegetation including reeds and thorny bushes.
• UMK Series (16, 18, 21): Robust mowers for tractors with 23 to 44 kW (30 to 60 HP). Working widths from 1.60 m to 2.10 m. Available as rear, front, or combined attachments. Can be equipped with heavy flail shafts for stronger vegetation.
• UM Series (19, 23, 27, 30, 40): Larger mowers for tractors from 33 kW (45 HP) upwards, with working widths from 1.90 m to 4.00 m. Features include sturdy construction, lateral displacement options, and suitability for a wide range of vegetation including shrubs up to 4 cm diameter.
• GFM 740 Large Area Mower: Wide working width of 7.40 m, available in divided or closed build. Features hydraulic relief control, obstacle protection, and hydraulic positioning for transport and work modes.

2. Technical Features and Adjustments

• Attachment Options: Most mowers can be attached as rear, front, or combined implements using three-point hydraulic systems with versatile holding point adjustments.
• Lateral Displacement: Mechanical or hydraulic lateral displacement is available (up to 60 cm), allowing mowing in difficult-to-access areas such as under trees or near fences.
• Cutting Height Adjustment: Rough adjustment via scanning roller; fine adjustment via top link. Some models offer multiple cutting height settings.
• Flail Shafts and Flails: Standard flails weigh about 2 kg, made of spring steel, loosely hooked to allow backward movement on impact. Optional heavy, free-floating flails are available for tougher vegetation and shrubs.
• Ground Adjustment: Rollers mounted across the mowing width ensure good ground contact and mowing quality on uneven terrain. Some models can be fitted with wheels for level terrain.
• Power Requirements: Power ranges from 13 kW (18 HP) for smaller models up to 140 kW (190 HP) for larger models. PTO shaft speeds are typically 540 rpm, with optional 1000 rpm available.

3. Special Features and Accessories

• Baskets: Available for certain UM models (UM 19, 23, 27) to collect mowed material hydraulically, aiding in pathogen and parasite control in animal pastures.
• Ground Relieving Springs: Optional on front attachments to reduce support weight by up to 50%, improving maneuverability.
• Impact Rails: Optional installation to enhance shredding of mulch material.
• Hydraulic Controls: Used for lateral displacement, transport positioning, and working position adjustments, enhancing operator comfort and machine protection.

4. Range of Application

The mowers are suitable for diverse environments including agriculture, orchards, vineyards, roadside verges, sports fields, recreation grounds, shooting ranges, and airfields. They handle a wide variety of vegetation types from grass and reeds to thorny bushes and shrubs up to 4 cm in diameter.

5. Technical Data Summary

The document includes a detailed table summarizing key parameters for each model, including working width, total and transport width, power requirements, weight, PTO shaft speed, area output, linkage category, number of flails, front attachment options, lateral displacement capability, basket availability, and ground adjustment type. For example:

• UMT 10: 1.00 m working width, 13 kW power, 310 kg weight, 540 rpm PTO, 0.45 m lateral displacement, roller ground adjustment.
• UMK 21: 2.10 m working width, 37 kW power, 650 kg weight, 540 rpm PTO, 0.60 m lateral displacement, roller ground adjustment.
• UM 40: 4.00 m working width, 140 kW power, 1600 kg weight, 1000 rpm PTO, no lateral displacement, roller ground adjustment.
• GFM 740: 7.40 m working width, 4500 kg weight, 1000 rpm PTO, roller ground adjustment.

6. Manufacturer Information

Gerhard Dücker GmbH & Co. KG, located in Stadtlohn, Germany, specializes in technology for environmental landscape maintenance and agriculture. Contact details and website are provided for further inquiries.

Critical Information and Recommendations

• Choose mower size and power requirements based on tractor capacity and terrain.
• Utilize lateral displacement features for mowing in restricted or uneven areas.
• Consider optional heavy flails for tougher vegetation to improve durability and effectiveness.
• Use baskets for collecting mowed material to reduce parasite spread in animal pastures.
• Regularly adjust cutting height and ground contact rollers for optimal mowing quality.
• Hydraulic options enhance operator comfort and machine protection, recommended for larger or more complex operations.