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Bigger isn’t always better when it comes to money. In OEM work, the minute you start talking about tall medical kiosks, wide outdoor digital signs, or full-height power cabinets, the price tag jumps fast. Material eats up cash, shipping turns into a headache, and keeping everything straight and square gets tricky once parts grow past a certain point. Walk away from those details, and your whole project can bleed profit before the first unit ever ships.
The fix rarely means making the product smaller. Most times, it just means finding a shop that actually knows how to handle big sheet-metal jobs without charging you the moon. San Jun Hardware opened its doors in 2010 and has spent every day since building custom sheet-metal pieces for display, education, medical, power, home, and new-energy customers. We take oversized headaches and turn them into parts that fit your drawing, your budget, and your schedule.
Every shop has a point where a part stops being normal and starts costing extra. Knowing those limits keeps surprises off the quote.
Once a blank gets longer than the average cutting table or heavier than a standard press brake likes, things get interesting.
Cutting Capacity: Our 3000W laser cutter eats full 1500 × 3000 mm sheets all day. We still hold ±0.1 mm on thin material (0.5 mm to 2.0 mm) and only open up to ±0.3 mm on anything 10 mm and thicker. That kind of control matters when you’re cutting a six-foot-tall door that has to line up with a frame within a hair.
Bending and Forming: Long bends put serious tonnage on the machine. Our three AMADA CNC press brakes handle up to 4-meter lengths without bowing in the middle. Operators watch the back-gauge like hawks and still keep bends within ±0.4 mm. Skip that step, and the door won’t close right once it reaches the customer.
A six-foot panel doesn’t ride in a regular box. It needs wooden crates, corner boards, and sometimes a dedicated truck. One dent in transit and you’re looking at weeks of delay. We see customers lose thousands on freight alone because nobody thought about how the finished cabinet was actually going to leave the dock. Smart design up front—knocking a big box down into four or five bolted sections—saves more money on shipping than most people ever guess.
The real money saver is simple: stop trying to make one giant piece when four smaller ones bolt together just as strongly.
Take a tall hospital kiosk. Instead of wrestling one monster sheet through the shop, we cut and form the base, two side walls, a top, and a door separately. Each piece stays light enough for one man to flip, bends stay clean, and scrap drops to almost nothing. Later, in assembly, our fitters line everything up on a jig, rivet or weld the seams, and the finished box looks—and acts—as it came out of one solid sheet. Customers love it because the crate size shrinks, freight drops, and if somebody bangs a corner in shipping, they only have to replace one section instead of the whole thing.
Our two CNC turret punches—an XP1250X and an AMADA EM2510—knock out louvers and holes on big panels without moving the sheet a hundred times. The 3000W laser follows up on the outside profile. When the part finally hits the powder-coat booth, every square inch gets the same tough finish, whether it’s a small bracket or a seven-foot door. Matching color and texture across all the pieces is what makes the final machine look factory-clean instead of patched together.
Look at the jobs we run every week, and you’ll see size handled right.
Hospital Self-Service Kiosk Enclosures stand over six feet tall once the screen and printer go in. We build them from cold-rolled steel with extra anti-rust primer so they stay clean in hallways that get mopped with bleach twice a day. A 32-inch model still weighs less than most people expect because the internal frame spreads the load, and the outer skins are only 1.5 mm thick where they need to be. Patients lean on them, kids kick them, and the doors still shut straight after thousands of cycles.
Nothing tests big metal like hanging a 65-inch screen on the side of a building in Europe. Our Outdoor Custom Digital Signage Shell IP65 units use aluminum-alloy frames, 3500 cd/m² panels, and sealed glands so rain stays out while heat sneaks away. We ship these in knock-down sections, bolt them together on site, and the customer gets a rock-solid box that carries full CE and RoHS paperwork. Same story with power-supply enclosures—big, heavy, and hot inside, but the sheet metal keeps the weather out and the fans happy.
Good buyers want a shop that removes pain, not one that adds it.
Send us a drawing—no matter how odd the angles or how many slots—and we figure out how to build it without hard tooling. Fifty full-time sheet-metal engineers do nothing but customer jobs. That’s why quotes come back inside 24 hours and first samples (even on six-foot cabinets) ship in 3–7 working days once drawings are signed off.
Everything runs under GB/T19001-2008 (ISO 9001:2008). From the laser table to the welding booth to the final powder coat, every station checks its own work. If something ever comes back—and it almost never does—we trace it in 48 hours and make it right fast.
Big parts don’t have to mean big headaches. Split the job into smart sections, cut and bend with machines that actually fit the sheet, and finish everything the same so it looks like one piece when it’s done. San Jun Hardware does exactly that on Hospital Self-Service Kiosk Enclosures, Outdoor Custom Digital Signage Shell IP65 boxes, power cabinets, and everything in between. You get the size your product needs, the quality your customers demand, and a price that still leaves room for profit.
A: No, we build straight from your drawings with no hard tooling needed in almost every case.
A: 3000W fiber laser for cutting, three AMADA CNC press brakes for bending, and full-size welding jigs keep everything within spec, no matter how big the part.
A: We run a full ISO 9001:2008 system and add medical-grade cleanliness and anti-rust steps where they matter.
A: Give us decent drawings, and you’ll have a firm number inside 24 hours, even on big jobs.
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