All industries
Manufacturing
TOC in Manufacturing

Manufacturing

Where TOC was born — and still delivers the most dramatic results.

Theory of Constraints was first applied to manufacturing floors in the 1980s. The Drum-Buffer-Rope scheduling method transformed how factories identify bottlenecks, protect throughput, and reduce WIP — without adding capacity.

68%
median throughput increase
70%
median lead time cut
49%
median WIP/inventory reduction

Typical constraints in this sector

Single bottleneck machine limiting output
Long setup times across multiple resources
High WIP masking true flow problems
MRP pushing work faster than the constraint

TOC tools applied

Drum-Buffer-Rope (DBR)Simplified DBRTOC ReplenishmentThinking Processes

Documented cases in Manufacturing(12)

Graftech International

🇺🇸United States·2005
Validated
OtherGraphite manufacturing

Stock price increased 7-fold, measurable productivity increases across operations, significant untapped capacity unleashed, award-winning patents generated from new innovation process, and the company was saved from bankruptcy.

Key result:stock price increase: 7-fold

Pains Calcinação

🇧🇷Brazil·2018
Validated
DBRManufacturing

Improved calcination process through application of TOC principles, increasing production capacity.

JK Tyre & Industries Ltd.

🇮🇳India
Validated
DBRAutomotive

JK Tyre implemented a pull-based supply chain and standardised their RM, resulting in a 30% boost to availability and an 8% reduction in inventory days.

Being

🇯🇵Japan·2010
Validated
CCPMManufacturing

A Japanese company that implemented CCPM using BeingManagement2.

Key result:metric: 20

UD Anugrah

🌐Indonesia·2026
Validated
DBRFootwear Manufacturing

Optimized production capacity and increased throughput by 3.86%.

Peruvian Furniture SME

🌐Peru·2025
Validated
OtherManufacturing

Improved efficiency through the integration of Lean Manufacturing and Theory of Constraints.

Microsoft

🌐Spain·2017
Validated
OtherElectronics

Improved supply chain performance through the implementation of a Theory of Constraints end-to-end solution.

Hitachi Tool Engineering

🇧🇷Brazil·2020
Validated
OtherManufacturing

A empresa transformou sua operação com a aplicação da Teoria das Restrições, alcançando um lucro de 21,9%.

Key result:metric: 21.9

Maria Beatriz Lingerie

🇧🇷Brazil·2018
Validated
DBRManufacturing

Applied Theory of Constraints to improve production management in a lingerie factory.

AGP (American Glass Products)

🇺🇸United States·2018
Validated
DBRAutomotive

Applied Theory of Constraints to improve production and achieve surprising results.

SABIC

🌐Saudi Arabia·2001
Validated
CCPMChemicals

Achieved significant cost savings and reduced project duration by 10%.

Tata Steel

🇮🇳India·1984
Validated
OtherSteel Manufacturing

Achieved immediate and amazing results as well as sustainable performance using TOC principles.

Key result:metric: null