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E-Bike Battery Case Manufacturer · Guangzhou, China

Empty e-bike battery cases, from one piece

ABS and aluminium alloy housings for six frame types — 36–72 V, 18650 or 21700. Order one to test the fit, or two million a year.

1 pc
Minimum order
15 days
Lead time
5 hrs
Quote back
2M
Sets / year
Injection moulding machines in a row at the ALX factory in Guangzhou
10 Haitian presses
CNC machining bay at the ALX factory
15 CNC machines
Finished empty battery cases stacked before dispatch
Finished goods, same site
12,000 m² One site, Guangzhou
67 countries Europe · Türkiye · N & S America · Korea
MOQ 1 piece ≈15-day lead time 36 V – 72 V 18650 / 21700 ABS & aluminium alloy 2M sets / year
Six fitments · e-bike only

One factory for every e-bike battery case you re-order

We manufacture empty e-bike battery housings and nothing electrical — no cells, no BMS, no motors, no controllers. Tell us the voltage, the cell type and the frame dimensions, and we will point you at the housing that fits. If none of them do, we open a mould for you.

Not stock photography

The floor your order ships from

CNC machining, injection, and assembly, filmed in our own plant. No stock images, no renders.

Five-axis CNC cutting the shell15 machines
Finished cases ready to shipCapacity you can audit
Inside the shellTolerance you can see
Closing the caseMOQ 1 is real
Lock and keysSecurity, not decoration

Factory photography

Shot on our floor

Photographs from our own workshop and assembly hall.

Our plant
Our plantOwned building, not a trading office
CNC operator at work
CNC operator at workSame operator, every batch
Hydraulic press
Hydraulic pressForming, not outsourcing
In-house inspection
In-house inspectionWe check before you do
Dispatch area
Dispatch areaPacked and staged to ship
Assembly station
Assembly stationHands, not just machines
Shop floor
Shop floorLine after line
Machining centres
Machining centresTool changers and spindles
Inside the factory

From resin pellet to packed carton, under one roof

Moulding, CNC, painting, silk-screen, assembly and packing all happen behind one gate in Guangzhou — so nothing that affects your delivery date sits with a subcontractor.

The factory

12,000 m² in Guangzhou, 2 million sets a year

Fifteen CNC machines and ten Haitian injection moulding machines under one roof — which is why a one-piece sample and a two-million-set annual programme come out of the same building on the same process.

  • Sample and volume from one line. The MOQ-1 route is not a separate service — it runs on the same machinery as your production order.
  • Both material families in house. ABS and ABS+PC injection moulding alongside aluminium alloy work, so you are not sourcing a plastic shell and a metal shell from two suppliers.
  • Mould opening supported. Bring a frame drawing, a competitor part or a sketch. Where nothing in the range fits, we quote a new mould.
  • Empty shell, your electricals. We stay a mechanical supplier. Cells, BMS and pack assembly remain with you — which keeps product liability where it belongs.
12,000
m² facility
Guangzhou
15
CNC
machines
10
Haitian injection
moulding machines
2M
Sets annual
capacity
Ten Haitian injection moulding machines running in a line at the ALX e-bike battery case factory
A bay of fifteen CNC machining centres under an overhead crane
01

Branding

Logo printing and custom colours as standard OEM options, with mould opening available when the geometry has to change too.

02

Injection moulding

Ten Haitian machines running ABS, ABS+PC and flame-retardant grades, black as standard or matched to your colour reference.

03

CNC machining

Fifteen CNC machines for aluminium-alloy housings, reinforcement plates and the metal parts that sit inside a plastic shell.

04

Assembly options

Selectable cable-exit positions and mounting options. Locks, mounting kits and accessories supplied fitted or loose.

How an order runs

One piece or two million — same four steps

Tell us three things

Voltage, cell type and the dimensions you have to work with. A photo of the frame or of the case you are replacing works just as well.

↳ quoted within 5 hours

Check a sample

Order a single case and test the fit and finish yourself. Rapid prototyping and fast sample delivery are available for new brands.

↳ from 1 piece

Brand it, if you want

Add your logo, your colour, your cable exit and mounting choice — or commission a new mould if the geometry needs to change.

↳ OEM / ODM

Produce and ship

Volume runs on ten injection machines with capacity for two million sets a year, shipped EXW Guangzhou, or CIF on request.

↳ ≈15 days standard
Buyer questions

What purchasing managers ask us first

Yes. We would rather you test a single case than order 500 and discover it does not fit your frame. Repair workshops routinely buy one or two at a time, and new brands use the same route to sample before they have a catalogue. Volume pricing starts to move once you are ordering in the hundreds.

Enquiries are answered within five hours. Standard lead time on stock models is about 15 days. OEM orders carrying your logo or a matched colour add a few days for set-up; a brand-new mould is quoted separately with its own timeline.

The range covers 36 V to 72 V systems and both 18650 and 21700 cell formats. Because the case is sold empty, the cell configuration inside is yours to decide — tell us the cells you use and we will confirm the internal volume is sufficient.

No. We supply the empty case and the mechanical components around it — lock, cable exit, mounting hardware, reinforcement. Cells, BMS and pack assembly stay with you or your assembler. That keeps product liability for the electrical assembly where it belongs and lets you keep your own cell supplier.

Different frames need the cable to leave the case in different places, and different assembly processes want the mounting hardware fitted or supplied loose. Tell us which exit position and mounting arrangement you need and the case is built to that configuration, rather than you adapting it afterwards.

Yes — logo printing and custom colours are both standard OEM options. Send the artwork and a colour reference. If the shape itself has to change, that becomes an ODM project and we will quote a mould.

That is the ODM route. Send the frame envelope or the drawing and we will first check whether anything in the current range fits — frequently something does, which saves you a mould. If it does not, we quote opening one.

Waterproof construction is a design feature across all 6 families, and flame-retardant grades are available on some models. If your market requires a specific ingress-protection rating, state the requirement with your enquiry and we will confirm in writing whether the model you are looking at is tested to it — rather than leaving you to assume.

Start here

Tell us your voltage, cell type and dimensions

That is genuinely all we need to point you at the right case. You will have a quotation within five hours — on one piece or a container load.

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