Andvora
Operations Platform
STANDARD WORK & SOP REPOSITORY

Operational Field Guides & Kaizen Case Studies

Authoritative shopfloor execution guides written from the perspective of plant engineers and production supervisors. Zero vendor fluff: pure mathematical rigor, SOP checklists, and documented before/after Kaizen metrics.

DISCIPLINES: All Playbooks TPM & OEE Toyota Production System Quick Changeover (SMED)
DISCIPLINES:
GUIDE-TPM-01TPM & Equipment OEE•7 min read

Standardizing OEE Calculations: Planned Downtime vs. Ideal Cycle Time

Eliminate shift-end spreadsheet disputes. A rigorous mathematical guide to categorizing Availability, Performance, and Quality losses according to standard industrial practices (ISO 22400-2 time definitions & TPM Six Big Losses Nakajima taxonomy).

By Dicky Setyawan (Continuous Improvement Engineer)
Facility: Rigid Plastic Extrusion Facility (Field Baseline Study • Anonymized Facility)
Verified Kaizen Delta:
OEE 58.4%→ OEE 81.2%
+22.8 pp OEE Gain (+39.0% Relative OEE Score Uplift, +1.82 Recovered Hours/Shift — Capacity Potential)
GUIDE-TPS-02Toyota Production System•6 min read

Auditing the 8 Manufacturing Wastes (TIMWOODS) at the Gemba

Shopfloor checklist for identifying excess inventory queues, non-value-added operator walking patterns, and inter-process cooling delays directly at the Gemba.

By H. Santoso (Senior Production Supervisor)
Facility: Automotive Metal Stamping Facility (Field Baseline Study • Anonymized Facility)
Verified Kaizen Delta:
WIP 3.5 Days→ WIP 0.8 Days
-77% Floor Congestion & Working Capital Freed
GUIDE-SMD-03Quick Changeover (SMED)•9 min read

4-Stage SMED Deployment: Slashing Die Changeover Duration

Strict separation of internal and external changeover tasks using standardized tool racks, pneumatic die locks, and offline pre-heating protocols in injection molding.

By Bambang Pratama (Maintenance & Tooling Lead)
Facility: Heavy Injection Molding Shop (Field Baseline Study • Anonymized Facility)
Verified Kaizen Delta:
Setup 54 Min→ Setup 14 Min
-74% Changeover Downtime & +2 Extra Batches/Shift
GUIDE-TPM-04TPM & Equipment Effectiveness•8 min read

The Availability Trap: Why an 87% Running Line Can Still Deliver a 42% OEE

Plant leaders often fall into a false sense of security because machines stay powered on 87% of the shift. Once you multiply that by Operating Speed Rate and First-Pass Quality per standard JIPM formulas, actual OEE drops to 42%.

By Dicky Setyawan (Continuous Improvement Engineer)
Facility: Rigid Plastics & Precision Extrusion
Verified Kaizen Delta:
OEE 42.4% (Assumed 87%)→ OEE 78.6%
+36.2% True Capacity Recovered
GUIDE-TPM-05TPM Philosophy & Finance•9 min read

Why TPM is Profitable: Connecting Shopfloor Machine Reliability Directly to EBITDA

Plant management teams frequently slash preventative maintenance budgets to hit quarterly margin targets. The outcome is predictable: emergency breakdown repairs, unplanned overtime, and scrap multiply fourfold over the phantom savings.

By Dicky Setyawan (Continuous Improvement Engineer)
Facility: Rigid Plastics & Precision Extrusion
Verified Kaizen Delta:
Breakdown Cost $82,000 / mo→ Net Saving $67,000 / mo
4.8x ROI in First 12 Months
DOC-TPM-1988-102Autonomous Maintenance & Environment•7 min read

The 'Parlor Factory' Concept: Why Automation Fails Without Zero-Dust Gemba Standards

When Aishin Seiki introduced precision automation, their lines experienced catastrophic breakdown rates until they instituted the Parlor Factory standard. Machines cannot operate reliably at robotic speeds if the floor environment is treated like an old grease-pit.

By Andvora Engineering Research (Industrial Lean & TPM Practice)
Facility: Automotive Precision Machining & Assembly Plants
Verified Kaizen Delta:
Unplanned optical sensor trips: 28 stops/day→ Zero sensor trips & 3x spindle bearing life
Eliminated 42 hours/month of automated line micro-stoppages
DOC-TPM-1988-202Loss Elimination & Reliability•8 min read

Deconstructing The Six Big Losses: From Catastrophic Breakdown to Sub-5-Minute Micro-Stops

Most plants obsess over catastrophic breakdowns while completely ignoring minor stoppages and speed degradation. A deep deconstruction of Nakajima's Six Big Losses framework.

By Andvora Engineering Research (Industrial Lean & TPM Practice)
Facility: Automated Continuous Flow & Machining Facilities
Verified Kaizen Delta:
Minor stoppages: 45 stops/shift→ Micro-stops cut by 78%, OEE +14.2%
Recovered 3.8 operating hours per day across bottling line
DOC-TPM-1988-203Loss Elimination & Reliability•8 min read

Murata Kikai FMS Case Study: Why Minor Stoppages Destroy 24-Hour Unmanned Machining

Murata Kikai demonstrated that flexible manufacturing systems (FMS) cannot run unmanned overnight if minor stoppages occur more than once per 10 hours of cycle time.

By Andvora Engineering Research (Industrial Lean & TPM Practice)
Facility: Automated Continuous Flow & Machining Facilities
Verified Kaizen Delta:
Night shift halts: 6.4 alarms/night→ Zero unmanned halts over 90 days
True 24-hour lights-out production enabled on 8 machining centers
DOC-TPM-1988-301Loss Elimination & Reliability•8 min read

The Bathtub Curve & Why Preventive Maintenance Alone Guarantees Failure

Traditional PM assumes machines wear out linearly like car tires. Historical United Airlines and Nowlan & Heap data prove only 11% of equipment follows the bathtub curve.

By Andvora Engineering Research (Industrial Lean & TPM Practice)
Facility: Automated Continuous Flow & Machining Facilities
Verified Kaizen Delta:
PM-induced startup failures: 18%→ PM-induced re-work reduced to <1%
Shifted 40% of planned PM hours into autonomous operator lubrication inspection
OPERATIONAL ECOSYSTEMFrom Standard Work to Digital Execution

Turn these shopfloor SOPs into structured daily shift workflows

Andvora Shopfloor OS connects shift logging, 5S factory audit, and PQCDSM daily management directly at the extrusion line.

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