Compact epicyclic gearboxes for gas and steam turbine generator sets, cooling-water pumps and hydro turbines, typically around 99% efficient. Supplied and supported in Indonesia by an authorized partner.
Epicyclic gearboxes: compact, coaxial and highly efficient
Allen Gears epicyclic gearboxes can be used between a wide range of prime movers and driven equipment. They are used on gas turbine generator sets worldwide and are world leaders in the 3–20 MW range, with coaxial layouts that save space and reduce noise.
As an authorized partner, Spektrum helps you select the right unit and supports it on site—from installation and commissioning to inspection and overhaul.
- Authorized Allen Gears partnerOfficial appointment (STP) for genuine units and OEM-backed support.
- Installation & commissioningOur engineers handle site work, alignment and start-up.
- Overhaul & after-salesGearbox inspection, overhaul and replacement by our own team.
- Serving all of IndonesiaProjects delivered from Sumatra to Nusa Tenggara since 1999.
Choose your application
Tap a card to see design features and ratings.
Gas and steam turbine gearboxes—power generation
Generator- or turbine-mounted gearboxes for gas and steam turbine sets, world leaders in the 3–20 MW range.
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Vertical epicyclic gearboxes—cooling-water pumps
Coaxial motor–gearbox–pump drives with 99% mechanical efficiency and a compact footprint.
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Hydro turbine gearboxes—power generation
Speed increasers for 1–30 MW low-head turbines at 40–200 rpm, typically 99% efficient.
View specificationsWhat to send us
Share whatever you have—even photos of the site or existing equipment help. Our team will recommend a solution and prepare a quotation.
- Applicatione.g. GT generator set, CW pump, hydro turbine
- Power ratingkW or MW
- Input and output speedrpm, or the required ratio
- Arrangementhorizontal or vertical, mounting details
- Existing unit detailsnameplate or model, for replacements
- Site location and target dateso we can plan delivery
Gearbox projects by our team
Recent work delivered by Spektrum engineers.
RFCCU Gearbox Overhaul
Overhaul of the EGT & RGT gearboxes for a refinery RFCCU unit.
Gearbox Replacement, PETT No.3
New gearbox installed for the Tarum Timur electric pump, Perum Jasa Tirta II (2026).
Rehabilitation, PETT No.1
Gearbox replacement and rehabilitation for the Tarum Timur electric pump No.1.
Common questions
Is Spektrum an authorized Allen Gears partner?
Yes. Spektrum holds an official appointment (STP) for Lufkin Gears and Allen Gears, both Baker Hughes businesses, so you get genuine units with OEM-backed technical support.
Can you overhaul or replace an existing gearbox?
Yes. Our team carries out gearbox inspection, overhaul and replacement, including the EGT & RGT gearbox overhaul for an RFCCU unit and the gearbox replacements for the Tarum Timur electric pumps (PETT) for Perum Jasa Tirta II.
Do you handle installation and commissioning?
Yes. Our engineers can take care of delivery to site, installation, alignment, testing and commissioning, so the gearbox goes into service with a single point of responsibility.
How long does delivery take?
Gearboxes are engineered to order, so lead time depends on the size, rating and configuration. Send us your application details and we will confirm a delivery schedule with your quotation.
Do you work outside Jakarta?
Yes. We deliver projects across Indonesia, from Sumatra and Java to Sulawesi and Nusa Tenggara.
Not sure which gearbox fits your application?
Tell us about your machine train and our engineers will recommend the right Allen Gears solution.