Blowroom · Simplex · OE Rotor
53 kW Saved
✍ Sanyou Machinery & Technology
⏰ 7 min read
Blowroom Simplex OE energy saving Pakistan is one of the most underexplored opportunities in the textile industry today. At Kamal Textile Mills (Pvt) Ltd, Sanyou Machinery & Technology delivered exactly that — a measured, documented 53 kW reduction across three critical spinning departments, achieved without halting a single shift of production.
kW Installed Load
kW Load Before
kW Running Load After
kW Total Saved
Blowroom Simplex OE Energy Saving in Pakistan: The Problem at Kamal Textile Mills
Most spinning mills in Pakistan know their electricity bill is too high. Very few know exactly which section is responsible for how much of it. Kamal Textile Mills (Pvt) Ltd had three departments — the B/R Card (Blowroom and Carding) section, the Simplex section, and the Rifa OE (Open-End Rotor) section — all running with an installed electrical capacity of 572 kW.
The actual work these sections were performing required far less. But without section-level measurement, nobody knew the true running load. The mill was billing and planning around the installed capacity, not the operational reality. That gap — between what was installed and what was actually being consumed — is where 53 kW of savings were quietly hiding.
Sanyou Machinery & Technology was brought in to find it, quantify it, and eliminate it.
The Blowroom/Carding, Simplex, and OE Rotor sections represent the beginning, middle, and alternative-end of the spinning process. Each has distinct motor types, load profiles, and waste patterns. Treating them as one undivided electrical load — as most mills do — means waste in any one section is invisible and therefore uncorrectable. Blowroom Simplex OE energy saving projects must address each section individually to deliver accurate, verifiable results.
Section-by-Section Breakdown: Where the 53 kW Was Found
The Sanyou energy audit at Kamal Textile Mills clamp-metered every motor individually across all three sections during steady-state production. Here is what was found in each department.
B/R Card Section (Blowroom & Carding)
The Blowroom and Carding section had an installed load of 107 kW but was running at only 21 kW before Sanyou’s intervention — meaning 86 kW of installed capacity was already idle. However, the 21 kW running load itself contained waste. Beaters, fans, and transport motors were operating at fixed speeds regardless of feed rate and fibre throughput. After optimisation through VFD controls on the main fan and beater circuits and power factor correction at the section panel, the running load dropped to 7.1 kW — a saving of 13.9 kW from live production consumption.
Simplex Section (Speed Frame)
The Simplex section had a 64 kW installed load running at just 8 kW before modification. While the absolute saving here was 3 kW, this section’s value in a blowroom Simplex OE energy saving audit lies in what the data reveals: an installed-to-running ratio of 8:1 means the original motor sizing was dramatically mismatched to operational requirements. Correcting this ratio through right-sizing assessments and reactive power correction reduced the live load to 5 kW and improved the section’s power factor substantially.
Rifa OE Section (Open-End Rotor Spinning)
The Rifa OE section delivered the largest single saving: 35.8 kW, representing 67.5% of the total 53 kW project saving. OE rotor machines are high-speed, high-motor-count systems with rotor drives, suction fans, waxing units, and winding motors all running simultaneously. This density of electrical loads makes the OE section the highest-value target in any spinning mill energy audit. At Kamal Textile Mills, the combination of VFD installation on suction systems, power factor correction at the Rifa OE distribution panel, and motor load profiling brought the running consumption from 140 kW down to 104.2 kW.
Combined Results: Full Load Comparison at Kamal Textile Mills
The total installed load was 572 kW. The mill was actually running at 169 kW before optimisation — already far below installed capacity. Yet within that 169 kW, 53 kW was still avoidable waste. This is the key insight: even mills that appear to be running efficiently have a correctable gap between their actual consumption and their minimum necessary consumption. Sanyou’s job is to find and close that gap with engineering, not estimates.
How the 53 kW Was Eliminated: The Engineering Interventions
Every motor in the B/R Card, Simplex, and Rifa OE sections was individually measured during steady-state production. This is the non-negotiable first step — without granular data, any intervention is guesswork. The metering revealed the exact contribution of each motor to the section’s total load.
All three sections contained centrifugal fan and suction motors running at fixed maximum speed. VFDs were installed to match motor speed to actual production demand. At 80% speed, power consumption drops to roughly 51% of full-speed draw — the cube law applied practically across the Blowroom beaters, Simplex exhaust fans, and Rifa OE suction systems.
Capacitor banks were individually sized and installed at the B/R Card, Simplex, and OE section panels. This corrected the reactive power deficit in each section independently, improving overall power factor toward 0.95+ and reducing the kVA billed by WAPDA on every monthly statement.
Where motors were found running consistently below 35% of their rated capacity — which was common across all three sections — a right-sizing recommendation was issued. Replacing an oversized motor with a correctly-rated motor for the same task reduces both active consumption and reactive power draw, compounding the saving from VFD and capacitor interventions.
What This Means for Textile Mills Running B/R Card, Simplex, and OE Sections
The Kamal Textile Mills project demonstrates something important: blowroom Simplex OE energy saving is not limited to large-scale mills with enormous connected loads. A 53 kW saving from a 572 kW installed base — delivered across three departments — produces real, recurring financial benefit for a mid-size spinning operation.
If your mill operates any combination of Blowroom, Carding, Simplex, or OE Rotor sections, the following indicators suggest an energy audit would pay for itself within months:
- ✔Your Blowroom or Carding section has never had a load survey or sub-metering installed
- ✔Your Simplex or OE motors are more than 7 years old with no VFD retrofits
- ✔You are billed on connected load (CL) or your power factor is below 0.90
- ✔Your Rifa OE or other OE machines run at fixed suction speed regardless of rotor count in production
- ✔No energy audit has been conducted across your spinning departments in the past 3 years
At current WAPDA industrial tariffs (PKR 55–70/unit), a 53 kW sustained saving over 20 operating hours per day recovers approximately PKR 1.9–2.2 million per month. For a project of this scope, the payback period is typically 4 to 10 months. After that, every month of operation is pure cost reduction — year after year.
Frequently Asked Questions
Sanyou Machinery & Technology conducts no-obligation energy audits across all spinning sections for textile mills across Pakistan. Measured data. Documented results. Real savings.
Request Your Free Energy Audit →
Energy optimisation, textile machinery & HVAC engineering specialists — Pakistan. tmsanyou@icloud.com — 0300-4630297 — www.sanyou.com.pk