Size & grading
Automatic sorting into micron-level bands. One batch, one diameter — less matching work on your line.
About us
Twenty years.
Only round.
Linqing Aohengsai Steel Ball Manufacturing Co., Ltd., on the South Ring Road of Yandian, Linqing, Shandong. From 2006 to today the products changed and the machines changed. The rule did not: measure what can be measured before it ships.
Company
A factory that
treats balls like parts.
Registered in 2006 with the Linqing market authority, our business scope covers the production and sale of steel balls, and the sale of bearings, steel and wire.
Today we run four lines: bearing steel balls, ceramic balls, stainless steel balls, and bearing steel wire with annealing. Different industries, the same demands on roundness, hardness and consistency.
- Founded2006, Linqing, Shandong
- LocationSouth Ring Road, Yandian Town, Linqing
- Business scopeSteel ball production and sales; bearings, steel, wire
- Product linesBearing balls, ceramic balls, stainless balls, wire & annealing
Milestones
Step by step,
process by process.
-
2006
The company is founded
Registered on the South Ring Road of Yandian, Linqing, starting with the production and sale of bearing steel balls for nearby bearing and motor makers.
-
2024
Fine-grinding device patented
Our in-house "new-type steel ball fine-grinding device" was granted a Chinese utility model patent (CN 222002927 U). The detection and screening mechanisms cut manual adjustment and steady the quality of fine grinding.
-
Today
Four lines, one supply chain
Bearing steel balls, ceramic balls, stainless steel balls, and bearing steel wire with annealing — from a single ball to a coil of wire, kept as far as possible under one roof.
Quality & inspection
Before it ships,
let the data speak.
Balls rarely fail "suddenly": either the size spread is too wide, or the surface is damaged, or the hardness is short. All of it can be measured before dispatch — if someone is willing to measure it batch after batch.
Roundness & roughness
Roundness gauge and roughness gauge for spherical error, diameter variation and Ra — noise and life start here.
Hardness & structure
Rockwell sampling per batch; metallography for decarburisation, spheroidised structure and inclusions.
Standard inspection setup
- SizeOptical / laser sorting, diameter grading
- FormRoundness gauge, spherical error and diameter variation
- SurfaceRoughness gauge, Ra
- MechanicalRockwell hardness tester, HRC
- StructureMetallographic microscope, decarburisation and structure
- DefectsFlaw detection and visual inspection
Material certificates, dimensional and hardness records available on request; third-party reports can be arranged.
Why Aohengsai
Close to the cluster,
close to the customer.
Inside the bearing cluster
Linqing is one of China's bearing clusters: steel, consumables and subcontractors are nearby, which shortens the response time on urgent orders.
Every step in-house
Fine grinding, superfinishing, sorting and inspection under one roof. When something goes wrong we can trace the operation instead of pointing upstream.
Wire plus heat treatment
Bearing steel wire and spheroidizing under one supplier — one less handover for your cold-heading or machining line.
Small lots welcome
Samples, small batches and urgent orders are all worth a conversation. Get it right first, then scale.
Visit
Come and see
the machines.
South Ring Road, Yandian Town, Linqing, Shandong. Call ahead and we will have the running batch and its inspection records ready.
Address
South Ring Road, Yandian Town, Linqing, Shandong, China (500 m east of the Bearing Chamber of Commerce)
Telephone
Mobile / WeChat
+86 182 6555 7857
+86 152 6559 5998