About Us

Precision propellers, engineered for the sea.

Putra Karya Logam Sukses has been casting and machining marine propellers from our foundry in Asahan, North Sumatra, since 2014 — built on decades of hands-on propeller repair dating back to the 1990s.

1990
Roots since
1,200+
Propellers delivered
3
Registered brands
PKLS Foundry
PKLS Bronze Propeller

Our Story

From a small repair shop to a complete propeller house

PKLS traces its roots to the 1990s, when we started out repairing and reworking marine propellers by hand for the boats around us. There was no foundry, no machine shop; just the practical work of straightening, re-pitching and restoring worn blades to get vessels back on the water.

In 2014 we took the next step and set up our own foundry in Asahan, North Sumatra, so we could cast propellers from scratch rather than only repair them. From there the workshop kept growing into what it is today: the capability to handle the full life-cycle of a marine propeller — from raw casting and machining to balancing and final finishing — entirely in-house.

Those decades of hands-on repair still shape how we build. We know how a propeller wears, fails and performs in the water, and that understanding goes into every one we cast.

Today Putra Karya Logam Sukses — also known as Bankison — supplies propellers, shafts and parts for fishing vessels, tugboats and cargo ships across Indonesia, with stockists in several provinces. Our products reach the market under three registered trademarks: Dua Ikan Tongkol, Jangkar and Bankison.

What Drives Us

Four principles, every propeller

01

Precision above all

Every propeller is measured, tested and documented before it leaves our floor. Tolerances are not approximate.

02

In-house, end to end

Casting, machining, balancing and finishing all under one roof. No outsourcing — full control over quality at every stage.

03

Fast where it counts

Downtime costs money. Repair and reconditioning jobs are prioritised so vessels return to the water faster.

04

Straight answers

Talk directly to the engineers who build your propeller — not a call centre, not a sales layer between you and the workshop.

Workshop & Capabilities

Everything under one roof in Asahan

Sand casting, manganese bronze
Focus casting up to 100" propellers.
Static balancing
Every propeller balanced and documented before dispatch.
Repair & reconditioning
Blade straightening, pitch correction, build-up welding and re-balance.
Custom shaft & coupling machining
Shafts, flanges, muff couplings and bespoke parts made to your drawings.
PKLS Workshop Floor

Certifications

Quality-managed & certified

ISO
ISO 9001:2015
Quality management system
BKI
BKI Approved
Biro Klasifikasi Indonesia
TKDN
TKDN Certified
Local content level (Tingkat Komponen Dalam Negeri)

Our Brands

Three registered trademarks, one workshop

Every propeller and part we make is cast, machined and balanced at PKLS, then carried to market under one of three registered trademarks.

Dua Ikan Tongkol
Dua Ikan Tongkol
Jangkar
Jangkar
Bankison Engineering
Bankison Engineering

Get In Touch

Ready to work together?

Tell us about your vessel and we'll spec the right propeller — or diagnose an existing one that needs attention.