Enquiry

Manufacturer of keg spears, keg necks and keg couplers From grain to tap. Precision in stainless steel.

AOBAOSI has made keg necks since 1998 and keg spears since 2000 for the A, S, D, G and M systems, plus keg couplers and the tools used to remove and overhaul spears. Since 30 September 2026 the spears have been made exclusively in the new Lishui plant. The plant is new; the experience comes from 26 years of spear manufacturing.

Experience

No newcomer: spears for 26 years.

AOBAOSI has supplied keg necks to international keg manufacturers since 1998, and has developed and made its own spears since 2000. The new Lishui plant is the next step, not the first.

Our history
26years of spears, since 2000
28years of keg necks for international keg manufacturers, since 1998
20years of export, since 2006
31years of AOBAOSI, founded 1995
News

New at AOBAOSI

Home page of the new aobaosi.techCompany

The new aobaosi.tech

Find the right spear, calculate the spear length, remove and install it safely: our new website in six languages, built from the plant’s original documents.

Ten product sheets for type A, fanned out on a deskProduct

New product sheets and manuals in the new design

Product sheets for all five types A, S, D, G and M, plus the new manual for A and G with installation in eight and removal in six steps. The manuals for S, D and M will follow shortly.

Confetti at the opening of the Lishui plantCompany

Lishui Plant Officially Opened

More than 80 invited guests, including keg manufacturers, service and refurbishment companies, trade partners and keg lessors. Designed for up to 16,000 spears a day.

All posts
Range

Three products.
One thread.

Spear, keg neck and keg coupler are matched to each other. All threaded spears screw into the keg neck with 2″–14 TPI to BS 84. The keg coupler fits the spear of its system.

Type A spear
01 / 04 · Type A · JM-AX-02

One spear.
Six parts.

Keep scrolling: the spear takes itself apart into its components, the way it is assembled in the plant.

02 / 04 · Materials

Stainless steel where beer flows.

Body, spring retainer, spring and down tube in AISI 304. Seals in EPDM at 81 ± 3 Shore A.

03 / 04 · Maintenance

The year is on the seal.

The year is laser-marked into the seal and can be read from outside even when installed. At the keg you can see straight away when the seal needs replacing.

04 / 04 · Safety lock

Locked when the triangle points.

After installation, one tip of the triangle must point at the line on the body. Only then is the spear secured.

3D model from the original CAD data
System selector

Which system does your keg have?

One letter is enough. You will see the matching spear, keg coupler and test certificates.

Type A · Flat spear

To the type A product page →
Down tube & cleaning

The length of the spear decides whether a keg is clean.

The keg in cross-section, built from the original CAD data of a DIN keg: cleaning in 13 steps and dispensing, with a down tube that is too long, correct and too short. You see where the cleaning medium goes and how much beer stays in the keg.

Cut-open stainless steel keg upside down in the cleaning station, rinse water on the inner wall
Lishui plant in the evening light
Lishui plant · Zhejiang · opened on 30 September 2026

A plant built for spears.

16,000spears a day, maximum capacity
2fully automatic assembly lines, for type A and type S
74CNC machines in machining
7machines for leak testing
Tour and pictures from the plant
Network

Made in China. Connected to the world.

Two plants in Zhejiang, partners in Europe, Brazil and Japan.

Poland · MiastkoKeg Exchange GroupEuropean warehouse for AOBAOSI
Germany · AnzingMISA-Vertriebs GmbHSales partner
Italy · VimercateAEB KegsKeg manufacturer & partner
Brazil · SertãozinhoAgavicAOBAOSI distribution partner for keg spears and keg couplers in Brazil and South America
Japan · OsakaHARADA CORPORATIONDistributor for Japan
Spain · BarcelonaTubing FoodPartner for keg couplers in Spain
View partner card
Certifications

Tested, with number and expiry date.

DGUV TestSpears A/G/M and S/D, keg couplers, tested to DIN 6650-5NV 24813–24816 · valid until 7 July 2029
SGS test reportsSpears A, D, G, M, S tested to FDA methods; keg couplersApril and June 2024
SGS SVHCKeg neck model 004, REACH screeningMay 2024
ISO 9001Quality managementsince 2012
In brief

AOBAOSI in four answers

What does AOBAOSI make?

Keg spears for the A, S, D, G and M systems, stainless steel keg necks and keg couplers. Since 2026 the spears have been made at the Lishui plant, the necks in Ruian, and the couplers in Ruian and Lishui, Zhejiang Province.

Are AOBAOSI products certified?

Yes. Spears and keg couplers are tested to DIN 6650-5 and carry the SK marks SK 448-002 to SK 448-005 (DGUV Test NV 24813 to NV 24816). The quality management system is certified to ISO 9001:2015.

How many keg spears can AOBAOSI supply?

The Lishui plant is designed for up to 16,000 spears a day, with two fully automatic assembly lines for type A and type S.

Who is the contact in Europe?

Joost Samyn, Director Global Business Development, joost@aobaosi.tech. Since March 2026, stock for Europe has been held at the Keg Exchange warehouse in Poland.

Contact

Talk to us.

European salesJoost SamynDirector Global Business Development+32 487 83 96 88joost@aobaosi.tech
Lishui plant · Spears, keg couplersZhejiang Aobaosi Intelligent Manufacturing Co., Ltd.No. 199 Xianglong Road, Liandu District
Lishui City, Zhejiang, China
Ruian plant · Necks, keg couplersZhejiang Aobaosi Machinery Co., Ltd.418 Dengfeng Road, North Industrial Zone
Tangxia Town, Ruian City, Zhejiang, China
BrauBeviale 2026, 10–12 November, Nuremberg Exhibition Centre: AOBAOSI in Hall 7A, Stand 558

BrauBeviale 2026 · Hall 7A, Stand 558

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