A Q69 Shop Primer Line Leaves Dafeng for a Brazil Shipyard Customer
In November 2026, Jiangsu Dingtian Derusting & Painting Equipment Co., Ltd. completed factory acceptance testing and container loading of a Q69 shop primer line – a full steel plate pretreatment line with roller conveyor shot blasting and automatic primer coating – for a steel structure and shipyard services customer in Brazil. The line was knocked down into sections at our Dafeng works in Yancheng, loaded into 40-foot high-cube containers, and booked out of Shanghai (CNSHA).
The photographs from the loading bay tell the story: blue blast chamber sections standing inside an open high-cube container, orange safety platforms and walkway railings wrapped and stowed beside them, chamber wall panels lifted by overhead crane onto the trailer, and our loading crew checking the lashing plan sheet by sheet. Every module was photographed, measured and signed off before the container doors closed.
What Was Shipped: One Line, Seven Stations
The order is a continuous through-feed preservation line in the European naming convention, a shop primer line in shipyard language, and a steel plate pretreatment line in tender documents. Three names, one machine. The process flow is the seven-station sequence our shipyard customers specify:
Automatic loading -> flame preheating for stress relief and degreasing -> high-intensity shot blasting -> uniform shop primer coating -> hot air drying -> automatic coding with text, symbols or QR marks -> automatic unloading.
Plate enters on a roller conveyor shot blasting machine section and leaves primed, dry and marked, ready for cutting and welding. Working width covers 800 to 4000 mm plate, with section steel and H-beams running on the same conveyor. Blasting cleanliness reaches Sa 2.5 to Sa 3.0 per ISO 8501-1, the grade coastal yards worldwide require before any primer is allowed on the steel.
Customers who also process profiles and fabricated parts in the same yard typically pair this line with a hanger type shot blasting machine for one-off structures and a wire mesh belt shot blasting machine for small parts, so the whole yard runs on one abrasive logistics plan.
Why a Brazilian Buyer Chose a Chinese Shop Primer Line
Buyers in Brazil compared the same specification across European, Japanese and Chinese builders. The names on their shortlist were the usual ones: Wheelabrator, Pangborn and Sinto (Sintokogio). All three build proven preservation lines, and we say so plainly – this article is not a claim that anyone’s engineering is weak.
The decision came down to two numbers. First, capital cost: a Dingtian Q69 line with the same station list, the same blasting intensity class and the same primer application method is typically priced 30 to 50 percent below the equivalent European or Japanese line. Second, lifetime cost: blast wheels, liners, blades and seal curtains are wear items, and our comparable wear parts for these wheel designs are offered at roughly one tenth of OEM spare-part pricing, with dimensional interchangeability checked against the wheel drawings supplied with every line.
Quality was verified the hard way, not on paper. Before loading, the customer’s inspector witnessed a full production run: plate in at mill scale, plate out at Sa 2.5 with a uniform roughness profile, primer film thickness measured across the width, drying chamber holding temperature through a full shift. The same acceptance protocol runs on every steel plate pretreatment line we ship.
To be explicit for anyone searching brand names: Dingtian is not an authorised dealer, distributor or service partner of Wheelabrator, Pangborn or Sintokogio. We build our own lines and our own wear parts to comparable performance class, and we name the brands only because buyers search them.
How the World Names This Machine – and How Each Market Searches It
Terminology decides whether a buyer finds you. Top-tier European yards write preservation line in specifications. Shipyard planners say shop primer line in meetings and emails. Asian and Middle-Eastern tenders, and most B2B marketplaces, write steel plate pretreatment line or roller conveyor shot blasting pretreatment line. Nobody searches in a local language: across every market we serve, buyers type English phrases plus a regional qualifier, so that is exactly how this page is written.
Middle East and South Asia. Gulf yards anchor on shipbuilding and structural steel: shot blasting machine for shipyards in Qatar, shipyard shot blasting machine in Qatar, shot blasting machine for shipyards in UAE, shot blasting machine for shipbuilding in Saudi Arabia and shot blasting machine in Saudi Arabia for structural steel fabrication. Kuwait is the one market that searches H-beams directly: H beam shot blasting machine for structural steel in Kuwait and shot blasting machine for shipyard steel structures in Kuwait. Bahrain adds shot blasting machine for marine construction in Bahrain. India leads with foundries but ships plates too: shot blasting machine for foundry and casting plants in India beside shot blasting machine for shipbuilding in India. Turkey covers the widest spread: shot blasting machine for structural steel in Turkey and structural shot blasting machine for shipbuilding in Turkey.
South-East Asia and Latin America. Malaysia searches offshore work: shot blasting machine for offshore platforms in Malaysia and Malaysia shipbuilding shot blasting solutions. Indonesia writes shot blasting machine for infrastructure steel in Indonesia and shot blasting machine for shipyards in Indonesia. Vietnam’s export factories run multi-string coating lines and search shot blasting machine for export factories in Vietnam and Vietnam manufacturing shot blasting solutions. Mexico comes from the automotive supply chain: shot blasting machine for automotive supply chain in Mexico. Brazil, the destination of this shipment, is shipyard-first: shot blasting machine for shipyards in Brazil, Brazil shipyard shot blasting solutions, shot blasting machine for steel structures in Brazil and structural steel shot blasting equipment in Brazil. Salt-laden Atlantic air makes mill scale and flash rust a welding problem, not a cosmetic one, so priming right after blasting is standard practice in Santos-area yards and offshore support bases.
Northern Europe and CIS. Finland puts wind towers first and shipyards second: shot blasting machine for wind turbine towers in Finland, shot blasting machine for shipyards in Finland and Finland wind turbine tower shot blasting solutions. CIS buyers write wind tower fabrication in CIS countries when specifying tower lines. Across the continent, pan-European procurement engineers compare preservation lines on total cost of ownership, which is where the wear-part pricing argument above wins its hearings.
Yards that also blast tanks, pipe and fabricated sections before painting usually add an automatic abrasive recovery sandblasting room, a steel pipe inner and outer wall shot blasting machine for tubulars, or an industrial painting and coating line downstream, while job shops running mixed castings beside plate work add a turntable shot blasting machine for batch loading. That is exactly how this Brazilian project scope grew from one line into a yard-wide surface preparation plan.
Container Loading: Fitting a 40-Metre Line into Boxes
A pretreatment line is longer than any container, so it travels as modules. Blast chamber halves, roller conveyor frames, the preheating chamber, the painting station and the drying chamber were each designed to break at bolted flanges, never at welded seams. The loading photos show the discipline: chamber sections stood upright in a high-cube box on timber cradles, walkways and handrails wrapped in protective film, wall panels crane-lifted in sequence so heavy modules sit on the container floor and light structures ride above.
Every container carries a packing list matched to the erection drawing numbers, so the customer’s crew in Brazil opens boxes in assembly order. Standard build-to-loading time for a line of this class is 30 to 120 days depending on width and station count, and this order sat at the planned date.
Quality Gates Before the Doors Closed
Four checks gate every shipment. One: cleanliness, test plates blasted to Sa 2.5-3.0 and compared against ISO 8501-1 reference photographs. Two: roughness, profile measured on the same plates so primer adhesion is predictable. Three: abrasive recovery, the recovery system run until returned abrasive grain size stabilises, because a line that loses fines changes its own blast pattern. Four: primer film and drying, wet film thickness logged across the plate width and drying chamber temperature held through a simulated shift.
Parts that feed other machine families went through the same gate culture: our shot peening machine builds are intensity-verified with Almen strips, and overhead conveyor shot blasting machine orders are cycle-tested with loaded hooks. It is the same factory, the same inspectors, the same signature on the release note.
After-Sales and Wear Parts for Yards on Every Coast
A pretreatment line earns its keep in the second decade, not the second month. With every line we ship a wear-part starter kit, an illustrated parts manual keyed to the erection drawings, and a remote commissioning session for the customer’s crew. Blast wheels, top liners, side liners, seal curtains and conveyor rollers remain available for the life of the machine, priced as comparable replacements, not as captive OEM consumables.
For yards already running European or Japanese lines, our cross-brand wear parts programme covers common wheel designs from Wheelabrator, Pangborn and Sinto machines on the same comparable-pricing basis, with interchangeability verified against the customer’s wheel drawings before anything ships. Service coverage follows our export map: Gulf, South Asia, South-East Asia, Latin America, Northern Europe and CIS.
Shop Primer Line Global Shipment FAQ
What is a shop primer line and who needs one?
A shop primer line blasts steel plate or sections to a defined cleanliness grade and applies a thin weldable primer in one continuous pass. Shipyards, offshore builders, steel service centres and bridge fabricators need one wherever flash rust between blasting and fabrication would otherwise force rework.
Is a shop primer line the same as a preservation line or a steel plate pretreatment line?
Yes. Preservation line is the European specification term, shop primer line is shipyard speech, and steel plate pretreatment line is the tender and marketplace term. Same station list: preheat, blast, prime, dry, mark.
How do machine names differ between countries?
They do not differ by language: buyers everywhere type English plus a regional qualifier. Europe writes preservation line in specs, shipyards say shop primer line, tenders say steel plate pretreatment line, and each market adds its industry, from shipyards in Qatar and Brazil to foundries in India and wind towers in Finland.
Do buyers outside shipyards need a shop primer line?
Yes. Steel service centres priming stock plate, bridge fabricators, wind tower shops and export-oriented manufacturers all use the same line; only the primer type and line width change with the workpiece mix.
Which regions does Dingtian ship pretreatment lines to?
Sixteen markets and counting: Saudi Arabia, UAE, Kuwait, Oman, Bahrain, Qatar, Turkey, India, Mexico, Brazil, Malaysia, Indonesia, Vietnam, Finland, Russia and CIS, plus pan-European procurement accounts. All shipments book out of Shanghai (CNSHA).
What plate sizes can the Q69 line handle?
Working width runs from 800 to 4000 mm as standard, with wider beds engineered on request. Plate thickness from 1.5 mm up to heavy shipbuilding plate, and section steel or H-beams travel on the same roller conveyor.
What cleanliness does the line reach before priming?
Sa 2.5 to Sa 3.0 per ISO 8501-1, verified on test plates against reference photographs during factory acceptance, with roughness profile measured on the same plates.
How is a 40-metre pretreatment line packed for export?
Knocked down at bolted flanges into modules sized for 40-foot high-cube containers, cradled on timber, packed in assembly order and matched to erection drawing numbers so site crews open boxes in sequence.
What are the lead time and loading port for overseas orders?
Build to loading typically runs 30 to 120 days depending on width and stations. Loading port is Shanghai (CNSHA), with freight arranged to the customer’s port of choice, Santos and Suape included.
Can Dingtian supply wear parts comparable to Wheelabrator, Pangborn or Sinto originals?
Yes, on a comparable-performance basis with interchangeability checked against your wheel drawings. Dingtian is not an authorised dealer or service partner of those brands; we manufacture independent replacements.
Is commissioning support available at the destination?
Yes. Every line ships with remote commissioning and operator training included, and on-site supervision can be arranged for first production runs in Brazil, the Gulf, South Asia or Europe.
About Jiangsu Dingtian Derusting & Painting Equipment Co., Ltd.
Dingtian is a factory-direct manufacturer of shot blasting and coating equipment in Dafeng District, Yancheng, Jiangsu, China, building blast machines, pretreatment lines and painting systems for export markets since 1998. Enquiries: dtcx@dt-shotblasting.com, WhatsApp +86 158 9516 5618, website dt-shotblasting.com.
Trademark notice: Wheelabrator, Pangborn and Sinto / Sintokogio are trademarks of their respective owners, mentioned for comparison only. Dingtian is an independent manufacturer and is not affiliated with, endorsed by, or an authorised dealer of these companies.