{"id":604,"date":"2026-07-21T02:27:53","date_gmt":"2026-07-21T02:27:53","guid":{"rendered":"https:\/\/forage-balers.com\/?p=604"},"modified":"2026-07-21T02:27:53","modified_gmt":"2026-07-21T02:27:53","slug":"how-to-build-a-complete-forage-harvest-system-mower-rake-baler-and-bale-transporter-working-together","status":"publish","type":"post","link":"https:\/\/forage-balers.com\/id\/application\/how-to-build-a-complete-forage-harvest-system-mower-rake-baler-and-bale-transporter-working-together\/","title":{"rendered":"How to Build a Complete Forage Harvest System: Mower, Rake, Baler and Bale Transporter Working Together"},"content":{"rendered":"
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Forage System Design<\/p>\n

Four implements, one coordinated chain \u2014 why matching throughput capacities across the complete harvest system delivers more total output than optimising any single machine in isolation.<\/h2>\n

Most forage operations do not have a mowing problem or a baling problem. They have a system design problem \u2014 where one bottleneck implement limits the output of everything connected to it.<\/p>\n<\/div>\n


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A hay operation is not a collection of individual machines. It is a production chain where the output of each implement becomes the input for the next, and where the weakest link in that chain determines the maximum throughput of the entire system \u2014 regardless of how capable the other machines are. A high-output round baler producing 80 bales per hour behind a mowing system that can only cut 1.5 ha\/h will spend most of the day waiting for windrows. A wide-coverage mower conditioner cutting 3.2m per pass whose output is consolidated by a narrow-working rake that cannot keep up will leave cut crop in swath longer than the quality window allows. A baler running at full throughput on good windrows that relies on a loader and single-axle trailer for field clearance will eventually slow or stop when the field becomes congested with ejected bales.<\/p>\n

Designing a forage harvest system means selecting and matching implements across the complete chain so that each stage can process the output of the stage before it at a rate that keeps the whole system moving without bottlenecks. This is straightforward in principle but frequently wrong in practice, because most equipment purchasing decisions are made one machine at a time \u2014 driven by the immediate need, the available budget at that moment, and the recommendation of the dealer who is selling that particular machine. The system perspective \u2014 asking how this machine will interact with what comes before and after it in the chain \u2014 is rarely the primary frame for an individual equipment purchase.<\/p>\n

This guide covers the four-implement forage harvest chain \u2014 mower conditioner, rake, round baler, and bale transporter \u2014 and explains how to match their capacities to each other, how to calculate whether your current system has a bottleneck, and what the correct sequence of equipment investment looks like when building or upgrading a system from scratch. For the implements referenced throughout this guide, browse our complete range of forage harvesting equipment<\/a>.<\/p>\n

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1. The Four-Stage Chain: What Each Implement Does and What It Hands to the Next<\/h2>\n

Stage 1 \u2014 Mower Conditioner: Converting Standing Crop to Conditioned Swath<\/h3>\n

The mower conditioner is the entry point of the harvest chain. It severs standing vegetation at the set stubble height and immediately conditions the cut material \u2014 crushing or abrading the stem cuticle \u2014 to accelerate moisture evaporation and reduce field drying time by 30\u201350%. What it hands to the next stage is a conditioned swath at the set width, at a certain material density per unit length, at a moisture content that will continue to decline through the field drying period. The mower conditioner’s throughput determines the maximum rate at which new material enters the system \u2014 the ceiling for everything that follows. Every subsequent stage either keeps up with that ceiling or becomes a bottleneck that forces cut crop to wait in swath longer than the quality window allows.<\/p>\n

The key output specifications that flow from the mower conditioner to the rake are cutting width (which determines how wide a swath the rake must collect from), swath width setting (which determines the consolidation work the rake must perform), and conditioning effectiveness (which determines how much additional drying time the swath needs before reaching optimal raking moisture). A 3.2m mower conditioner set to a 2.0m swath producing 2.4\u20132.8 ha\/h of conditioned material is a specific input load for the raking stage \u2014 the rake must be able to handle this at or above the mowing rate to avoid a windrow accumulation backlog.<\/p>\n

Stage 2 \u2014 Rake: Converting Swath to Windrow<\/h3>\n

The rake’s function is to gather the conditioned swath left by the mower conditioner and consolidate it into a windrow of the width and density that the baler’s pickup can collect efficiently. The rake adds drying time to the crop \u2014 raking at the optimal moisture window (30\u201340% for grasses, 35\u201345% for legumes) turns and fluffs material to expose more surface area to sun and wind, accelerating the final drying phase. The windrow it produces hands to the baler a specific width, a specific material weight per unit length, and a consistent moisture content. The baler’s pickup width and throughput rate must match what the rake produces \u2014 a windrow wider than the pickup produces lateral loss; a windrow heavier than the baler can process at rated speed creates compression chamber surge.<\/p>\n

Stage 3 \u2014 Round Baler: Converting Windrow to Stored Bale<\/h3>\n

The round baler receives the windrow from the rake and compresses it into a bale at the target density, applies net wrap, and ejects the finished bale onto the field. Its throughput \u2014 measured in bales per hour and tonnes per hour \u2014 must match or exceed the rake’s windrow formation rate so that windrows do not accumulate unraked in front of the baler as the day progresses. The bale it produces hands to the transport stage a specific size, weight, and net wrap integrity \u2014 all of which determine how the bale transporter can handle it and what the storage outcome will be.<\/p>\n

Stage 4 \u2014 Bale Transporter: Converting Field Storage to Managed Storage<\/h3>\n

The bale transporter collects finished bales from the field and moves them to the storage facility. Its throughput \u2014 determined by load capacity, field-to-storage cycle time, and loading and unloading speed \u2014 must be sufficient to clear bales from the field at the rate the baler produces them. If it cannot keep up, the field accumulates bales that block subsequent baling passes, create bale density inconsistency when the baler must steer around ejected bales on narrow windrow strips, and risk damage from field equipment and weather exposure. The transport stage is the most frequently underspecified element in forage harvest chain design, because its capacity constraint does not become visible until the baler has been running for several hours and the field starts filling with uncleared bales.<\/p>\n

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2. Capacity Matching: The Calculation Every System Designer Must Do<\/h2>\n

The system design calculation starts by identifying the production target \u2014 the total hectares to be harvested per cut, divided by the number of available working days in the typical weather window for your region \u2014 and working backward through the chain to determine what throughput rate each stage must achieve to meet that target without creating a bottleneck.<\/p>\n

An Illustrative Capacity Example<\/h3>\n

Consider a 300 ha alfalfa operation with a 3-cut season. Each cut must be completed within a 4\u20135 day weather window to maintain quality. With two 8-hour working days available before weather risk rises significantly, the system must cut, rake, and bale 300 ha in 16 productive machine hours \u2014 a combined mowing rate of approximately 19 ha per working day, or 2.4 ha\/h continuous throughput across the full system.<\/p>\n

\n\n\n\n\n\n\n\n\n
Stage<\/th>\nRequired Rate<\/th>\nMatched Implement<\/th>\nRated Capacity<\/th>\n<\/tr>\n<\/thead>\n
Mowing<\/td>\n\u22652.4 ha\/h<\/td>\n9GQY-3.2 Mower Conditioner<\/td>\n2.4\u20132.8 ha\/h \u2713<\/td>\n<\/tr>\n
Raking<\/td>\n\u22652.4 ha\/h<\/td>\n9LZY-9.0 Finger-Wheel Rake<\/td>\n7.2\u20139.0 ha\/h \u2713\u2713<\/td>\n<\/tr>\n
Baling<\/td>\n\u226560 bales\/h<\/td>\nS9000 Classic Round Baler<\/td>\n40\u2013100 bales\/h \u2713<\/td>\n<\/tr>\n
Transport<\/td>\n\u226518 t\/h cleared<\/td>\n9JYY-4.5 Bale Transporter<\/td>\n4500 kg\/trip \u2713<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

In this example, the mowing stage is the system’s natural rate-setter \u2014 the 9GQY-3.2 at 2.4\u20132.8 ha\/h is operating near its capacity ceiling. The rake has substantial surplus capacity (7.2 ha\/h versus the 2.4 ha\/h required), meaning it can easily service the mower’s output without becoming a bottleneck. The baler at 40\u2013100 bales\/h has adequate throughput to keep up with the windrow volume from a single mower. The transport stage, at 4500 kg per trip with a 15-minute cycle time to storage, clears approximately 18 tonnes per hour \u2014 matching the baler’s output rate on 300 kg alfalfa bales at 60 bales\/hour.<\/p>\n

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The bottleneck test:<\/strong> For each stage in your system, calculate its throughput rate in the same units (tonnes per hour or hectares per hour) and compare them. The lowest throughput stage is your system’s bottleneck \u2014 it limits the output of every upstream and downstream stage regardless of their individual capacity. Invest in eliminating the bottleneck before adding capacity anywhere else in the chain.<\/p>\n<\/div>\n

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3. The Power Transmission Chain: Where System Reliability Actually Lives<\/h2>\n

A forage harvest system is not just a chain of field implements \u2014 it is a chain of power transmission connections, where every PTO-driven machine depends on a driveshaft that must reliably deliver the rated power input at the rated speed throughout the working day. The system’s mechanical reliability is only as good as the weakest power transmission link in the chain, and that link is almost always the PTO driveshaft rather than the implement itself.<\/p>\n

Why PTO Shafts Are the Most Common System Failure Point<\/h3>\n

PTO driveshafts are the most mechanically stressed component in any trailed implement system: they transmit full engine power through rotating universal joints at operating angles that change with terrain, they telescope under the dynamic length changes that occur as the tractor-implement articulation angle varies through headland turns, and they absorb the overload events generated when the implement encounters unexpected resistance \u2014 a dense material slug, an embedded stone, a sudden blockage. They are also the component most commonly underspecified, because their specification requires matching the shaft’s torque rating to the implement’s peak load \u2014 not its average load \u2014 and peak loads in forage harvesting can be three to four times the steady-state average.<\/p>\n

A correctly specified pto shaft<\/a> for each powered implement in the harvest chain \u2014 rated for the peak torque of that implement at its operating speed, dynamically balanced, equipped with a correctly calibrated overload protection device, and maintained with intact full-length guarding \u2014 is the single most cost-effective reliability investment available for a forage harvest system. The cost of a correctly specified shaft is modest relative to the cost of the implement it protects. The cost of a shaft failure during a narrow harvest window \u2014 in downtime, in quality loss from crop left in swath, and potentially in implement damage from an under-protected overload event \u2014 is many times the cost of the shaft itself.<\/p>\n

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Shaft Specification by Implement Type in the Harvest Chain<\/h3>\n

Each powered implement in the harvest chain has different peak torque characteristics that determine the shaft specification required:<\/p>\n