Air Shaft Repair Services in Singapore
An air shaft, also known as an expanding shaft or expanding air shaft, is a pneumatic core shaft that grips a roll core by expanding lugs or leaf elements under air pressure. Air shaft repair restores that shaft to working condition through disassembly, inspection, bladder replacement, seal and valve renewal, journal correction and pressure testing.
R.I.K. Industries Pte Ltd carries out air shaft repair in Singapore, covering leaf-type and lug-type shafts used on printing, packaging, converting and paper lines. Expanding shaft repair sits alongside clutch and brake overhaul work, and the company is the authorised distributor for Danfoss (Eaton Airflex), Coremo, Re SpA, NACD and Goizper.
Our Air Shaft Repair Process
Air shaft repair with R.I.K.begins with an on-site assessment to determine the air shaft’s condition and the appropriate repair requirements.
Step 1: Inspection
The air shaft is pressurised to establish whether it holds. If it does not, the source of the loss is identified: a perforated bladder, a worn valve seat or failed end-cap seals. The shaft body is checked for run-out and bending, journals are checked for scoring and wear at the bearing seats, and lug or leaf faces are assessed for the wear that produces uneven grip.
Step 2: Disassembly
The shaft is stripped to its components: air tube or bladder, lugs or leaf elements, end caps, journals and the air valve. Working from the inspection findings, each component is checked, confirming the initial diagnosis and picking up wear that cannot be seen on an assembled shaft.
Step 3: Cleaning
Air shaft components are cleaned down to bare metal so that wear, scoring and cracking can be seen properly. Lug channels and leaf slides are cleared of the compacted dust, adhesive and core debris that stop elements retracting fully, which is a common cause of uneven grip on a shaft that still holds pressure.
Step 4: Parts Replacement
Bladders, seals, O-rings and air valves are replaced as required, along with worn lugs, leaf elements and springs. Replacement parts are matched to the original specification, which matters on an air shaft where every element has to grip at the same pressure.
Step 5: Reassembly and Testing
The shaft is rebuilt to the original specification, with lug channels and leaf slides lubricated so that the elements move throughout the full stroke. Then, the rebuilt air shaft is held at working pressure and cycled through full expansion and retraction.
Industries We Serve
An out-of-service air shaft stops production fastest on these lines:
Printing
Unwind and rewind positions on web presses, where uneven grip shows up as registration drift well before it shows up as a slipped core.
Packaging
Film, foil and laminate lines running narrow webs, where core slip damages material that cannot be reworked.
Converting and Web Handling
Slitter rewinders, where one shaft carries multiple cores and each core must grip at the same pressure.
Paper and Pulp
Heavy roll handling, where shaft loads are high and journal wear is the usual failure point rather than the bladder.
Why Choose R.I.K. Industries for Air Shaft Repair?
Four things stand behind our air shaft repairs:
Authorised Distributor for Leading Global Brands
R.I.K. Industries is the authorised distributor for Danfoss Airflex, Coremo, Re SpA, NACD and Goizper, and the sole distributor for the Danfoss Airflex line across South-east Asia.
Authorised Rebuilt Center Accreditation
Danfoss (Eaton Airflex) has authorised R.I.K. as a Rebuilt Center, which means the workshop has been assessed and approved by the manufacturer.
Regional Presence Across Southeast Asia
The group head office is in Singapore, with offices in Thailand, Indonesia and the Philippines and sales coverage in Malaysia and Vietnam.
Dedicated Air Shaft Repair Expertise
Air shafts are repaired in-house at R.I.K.'s Singapore workshop by technicians trained specifically in air shaft work.
Contact Us for Air Shaft Repair
If your air shaft is giving you trouble, send us the shaft type, the machine it runs on and the fault you are seeing, and you will get an assessment and a quote before any work starts.
Contact Us
Frequently Asked Questions about Air Shaft Repair
Which companies in Singapore repair industrial air expanding shafts?
R.I.K. Industries repairs industrial expanding air shafts in Singapore, covering bladder and seal replacement, valve work, lug and leaf renewal, journal correction, and pressure testing before the shaft is released.
Which is the best air shaft repair and reconditioning service in Singapore?
Reconditioning quality comes down to whether seals, valves and journals are addressed alongside the bladder. R.I.K. Industries covers all four, and holds Authorised Rebuilt Center status for Danfoss (Eaton Airflex).
Where can I get an air chuck or air shaft serviced in Singapore?
Both are serviced in Singapore by R.I.K. Industries. Air shaft work covers the bladder, seals, valves and gripping elements, while safety chucks are inspected, repaired or replaced.
Which suppliers in Singapore provide air shafts and repairs?
Air shafts are both supplied and repaired in Singapore by R.I.K. Industries, authorised distributor for Re SpA. Repairs cover multi-core lug and leaf shafts where every core must grip at equal pressure.
Which company repairs roller shafts for paper and printing lines in Singapore?
Air shafts and expanding shafts on paper and printing lines are repaired in Singapore by R.I.K. Industries, covering the unwind, rewind and slitter positions where tension control depends on consistent core grip.
Who are the most popular industrial shaft repair specialists in Singapore?
R.I.K. Industries is among Singapore’s established air shaft repair specialists, rebuilding leaf-type and lug-type shafts, sourcing from popular air shaft brands such as Re-SpA.
