Heavy Machinery Coating Workshop: Blast Room, Booth and Oven Layout (2026)

Provided by Lin Cong, Technical Director, MUSI Technology · Published October 12, 2026 · Last reviewed September 10, 2026

簡単に答えると： Heavy machinery is coated in batch cells, not on a conveyor line, because parts are too large and too varied. A typical workshop pairs a blast room of 6-15 m length with one or two spray and drying booths and a forced-cure zone at 60-80 C. Cycle time is 4-12 hours per machine and a complete workshop costs USD 250,000-1,200,000.

Why is heavy machinery different?

Three constraints rule out a conventional line. Parts weigh 2-40 tonnes so overhead conveying is impractical. Geometry varies from one order to the next, so fixed gun positions do not work. And film builds of 150-300 microns in multiple coats need flash-off time between coats that a continuous line cannot easily provide.

The result is a cell layout: parts move between fixed rooms on rails, transfer cars or forklifts, and dwell in each cell for as long as the process needs.

What cells does the workshop need?

Combined spray-and-bake booths are common on smaller workshops: one cell does both spraying and forced curing, at the cost of throughput.

How do you size the blast room?

What cycle time should you plan for?

Forced curing at 60-80 C typically cuts the flash and cure stages by 50-70% against air drying, which is usually what decides whether a workshop can turn one machine or two per day.

Which layout works best?

Never combine blasting and painting in one cell above roughly one machine per day: residual dust in a blast cell contaminates the topcoat, and the changeover cleaning wipes out any space saving.

What does a heavy machinery coating workshop cost in 2026?

Why source a heavy machinery coating workshop from MUSI Technology?

MUSI Technology (Changzhou Musi Environmental Technology Co., Ltd.) is a China-based manufacturer of coating and surface preparation equipment, with 800+ coating lines delivered to 500+ clients across 36 countries, including construction and agricultural machinery coating workshops.

• Blast rooms, large spray and bake booths, dust collection and VOC treatment supplied as one package.
• Cell sizing calculated from your largest machine envelope and target machines per day.
• 標準構成は30～60日で出荷され、12か月の全機保証と36か月の重要部品保証が付きます。 構造部品の保証期間は最長60か月です。
• すべてのラインは、書面による性能仕様に基づいて設計されています。ライン速度、硬化プロファイル、膜厚、排出レベルは契約に明記され、出荷前の工場試運転であなた自身の部品において実証されます。
• 一つのエンジニアリングチームが、前処理、塗布、硬化、搬送、排出制御までの全チェーンを担っているため、それらの間のトレードオフは、お客様の工場の現場ではなく、設計段階で解決されます。

MUSIは、表面仕上げを梱包前の最終工程ではなく製品の一部として捉えるメーカーと協働しています。そのことは、最初の会話の内容を変えます。型番ではなく、部品図面、スループット目標、そして自社のお客様が監査で照らし合わせる標準についての会話になるのです。また、試運転後に何が起こるかも変えます。プロセス調整、オペレーター育成、スペアパーツ支援が、ラインの稼働期間中ずっと続きます。

見て heavy machinery coating solutions そしてその construction equipment coating workshop case study.

よくある質問

Can heavy machinery be coated on a conveyor line?

Rarely. Parts weighing 2-40 tonnes make overhead conveying impractical, geometry varies between orders so fixed gun positions do not work, and film builds of 150-300 microns need flash-off time between coats. Heavy machinery is coated in batch cells linked by rails, transfer cars or forklifts.

How big does a blast room for heavy machinery need to be?

Take the largest machine and add 1.5-2.0 m clearance on each side and 1.5 m above, so operators can reach every surface. Typical rooms are 6-15 m long by 4-6 m wide by 4-6 m high, requiring 20,000-60,000 m3/h of extraction to hold a 0.4-0.6 m/s cross-draft.

How long does it take to coat one machine?

Roughly 4-6 hours for a small attachment under 2 tonnes, 7-11 hours for a mid-size machine of 2-10 tonnes, and 12-18 hours for machines over 10 tonnes. Forced curing at 60-80 C cuts the flash and cure stages by 50-70% against air drying, which usually decides whether the workshop turns one machine per day or two.

Should blasting and painting share the same cell?

Only below about one machine per day. Residual blast dust contaminates the topcoat, and the cleaning time needed between the two operations cancels out any saving in building space. Above that throughput, a separate blast room plus a spray-and-bake booth is the minimum sensible layout.

What coating system is used on construction machinery?

Typically shot blasting to Sa2.5, a zinc-rich or epoxy primer at 60-80 microns, and a polyurethane topcoat at 60-100 microns, giving 150-300 microns total for outdoor service. Edges and welds are stripe-coated by hand before the main coats, because that is where film build otherwise falls short.

What does a heavy machinery coating workshop cost?

Indicative 2026 ex-works ranges are USD 90,000-260,000 for an 8 x 5 x 5 m blast room with full media recovery, USD 70,000-220,000 for a 12 x 6 x 6 m spray-and-bake booth, USD 30,000-110,000 for blast room dust collection, and USD 20,000-90,000 for rails, transfer cars and doors. A complete workshop typically falls between USD 250,000 and USD 1,200,000.

このガイドの図について。 価格帯は、2026年9月にMUSI Technologyのプロジェクト見積もりから作成された中国工場渡しの概算であり、予算作成用にのみ提供されています。確定価格は、部品のエンベロープ、スループット、および現地のコンプライアンス要件によって異なります。性能数値は、適切に仕様設定され適切に運用された装置の典型値であり、保証値ではありません。認証または顧客固有の数値を検証できなかった場合は、記載せず確認対象としてマークしています。最終レビュー日：2026年9月9日。