About factory · Profile
Production base, equipment and capacity
5,000 m² of production and warehouse space, 40+ machines and a documented process from raw material to packed carton.
Facility at a glance
One site in Wenzhou, Zhejiang, with casting, machining, finishing, assembly, inspection and packing under one roof.
5,000 m²
Floorspace
Production, inspection and finished-goods warehouse.
100+
Staff
Production, QC, engineering, customer service, warehousing.
300,000
Units / month
Locks and key boxes; 3,600,000 units a year.
20+
Years
Combined industry experience across the team.
MOCK｜必须修改：替换真实图片
A complete casting and pressing fleet
Vertical integration is what keeps tolerances stable between batches — the reason a cylinder ordered today fits a door made three years ago.
| Stage | Equipment | Qty | What it does for your order |
|---|---|---|---|
| Casting | Die-casting machine | 6 | Zinc-alloy and aluminium casting with stable shape and dimensions. |
| Pressing | Punching machine | 12 | High-volume pressing of lock bodies and plates with consistent strength. |
| Machining | Drilling machine | 5 | Mounting holes and cylinder bores held to drawing tolerances. |
| Finishing | Painting line | 5 | Powder coating and colour matching to your reference. |
| Curing | Industrial oven | 3 | Curing and finish durability. |
| Assembly | Automatic assembly machine | 8 | Repeatable assembly of pins, springs and cylinders. |
| Marking | Laser marking machine | 1 | Logo and serial numbers. |
| Total | 40+ machines | All units recorded and in acceptable condition. |
Surface finishing, and where each finish belongs
The finish decides how the hardware looks after two winters, not just how it looks in a sample box.
| Finish | How it is applied | Where it is normally specified |
|---|---|---|
| Powder coating | Electrostatic spray, cured in an industrial oven | Painted bodies and brackets, colour matched to your reference |
| Nickel plating | Electroplating, bright or satin | Zinc-alloy bodies where a bright finish is expected |
| Chrome plating | Electroplating over a nickel layer | Decorative, high-wear surfaces such as key heads and bolts |
| Zinc plating | Electroplating | Base corrosion protection on steel parts and fixings |
| Brushed or mirror polishing | Mechanical polishing | Stainless bodies and any face the tenant sees |
| Matte black | Coating or plating | Facility hardware where handling marks should not show |
Finish is chosen with the environment, not from a catalogue page. For coastal air we recommend 304 stainless with a brushed finish; for an indoor corridor, 201 stainless is normally enough. Tell us where the lock is installed and we will confirm the finish and the corrosion record that applies to it.
Process
From raw material to packed carton
Every stage has a written work instruction and a defined check point. Nothing moves to the next stage on assumption.
Raw material
Incoming inspection against specification; batch records opened.
Punching and machining
Bodies, plates and shackles formed to drawing.
Polishing and surface treatment
Finish applied to the agreed reference.
Plating
Corrosion protection matched to indoor or outdoor use.
Assembly
Cylinders, pins, springs and shackles assembled and function-tested.
Inspection and packing
Final check, packing verification and pre-shipment photos.
Scalability — small batches to large series
Flexible lines let us run a sample order and a phased multi-site programme on the same specification. For phased projects we schedule deliveries per site rather than shipping one container and hoping.
First Article Inspection before every batch
Before a full run starts, we confirm dimensions, finish and fit against the approved sample or drawing. If the first article is wrong, the batch does not start.
Mandatory 100% manual surface and function check on each unit at final inspection.
Questions about the production base
Can we audit the factory before ordering?
Yes. We support on-site audits and live video walkthroughs of the die-casting, assembly, inspection and packing areas. Our most recent third-party on-site verification was completed by SGS on 30 October 2025.
Which machines run the self-storage lines?
Six die-casting machines, twelve punching machines, five drilling machines, five painting lines, three industrial ovens, eight automatic assembly machines and a laser marking machine — 40+ units in total.
How is capacity shared between product lines?
Lock and key-box lines run at 300,000 units a month. Self-storage models are scheduled on the same lines, so capacity is allocated by order rather than by a dedicated self-storage line.
How many people work on the self-storage lines?
The site runs with 100+ staff across casting, machining, finishing, assembly, inspection and packing. How many sit on self-storage work in a given month follows the production plan rather than a fixed team.
What is the site's monthly capacity?
Around 300,000 units a month across the lock and key-box lines. What that means for your order depends on the model and the finish, so the schedule is confirmed against your quantity rather than quoted from the site figure.
Can we see the production floor without travelling to Wenzhou?
Yes. The video tour covers the casting and pressing workshop, the manual assembly benches and the quality control laboratory. For any station the videos do not reach, ask and we will photograph or film that specific operation.
Request a price list or a capacity review
Tell us the model family, the annual volume you expect and the delivery pattern. We will confirm what the lines can hold and what it costs.