Faisalabad, Pakistan’s industrial heart, is home to Sitara Chemical Industries Limited – one of the country’s largest manufacturers of basic chemicals, including caustic soda, chlorine, and hydrochloric acid. Like any large chemical complex, Sitara generates significant industrial by‑products and also consumes enormous quantities of construction materials for its ever‑expanding infrastructure.
In 2024, the company faced a dual challenge:
Managing industrial waste – particularly fly ash from their captive power plant.
Ensuring a steady, high‑quality supply of concrete blocks and pavers for new factories, warehouses, and employee housing.
The solution came from Silver Steel Mills – a SSM 50 fully automatic fly ash brick and block making machine, delivered and installed at Sitara Chemical’s Faisalabad site. This machine not only converts fly ash waste into valuable bricks but also produces high‑strength concrete products that outperform ordinary clay bricks.
In this article, we will explore:
Why understanding concrete types matters for your business.
The unique properties of fly ash concrete.
Complete specifications of the SSM 50 machine.
Real production data from Sitara Chemical.
Financial impact and ROI.
Let’s dive in.
Before investing in a block making machine, it’s essential to know the different types of concrete available in the construction industry. More than 100 types exist, but you don’t need to learn them all. However, knowing the top 20 will help you decide which products to manufacture for maximum profit.
Below is a summary of the most relevant concrete types for block and paver production.
Composition: Cement, sand, coarse aggregates, water.
Mix ratio: 1:2:4 (nominal mix).
Uses: Pavements, flooring, under column footings, buildings where high tensile strength is not required.
Why it matters: Ordinary concrete is the baseline. But for higher strength, you need reinforced or fly ash concrete.
Density: Less than 1,920 kg/m³.
Key property: Very low thermal conductivity.
Uses: Thermal insulation, protecting steel structures, long‑span decks, building blocks.
How to make: Use lightweight aggregates (natural or artificial). Fly ash bricks are naturally lighter than clay bricks.
Density: 3,000 – 4,000 kg/m³.
Uses: Atomic power plants, radiation shielding.
Why it matters: Not for general construction, but good to know for specialized contracts.
Composition: Concrete + steel reinforcement (bars, mesh).
Property: High tensile strength.
Uses: Almost every modern building, bridges, foundations.
Note: Your blocks and pavers are essentially a form of reinforced concrete (if you add fibers or steel).
Definition: Concrete cast in molds in a factory or at site, then moved after hardening.
Examples: Pre‑cast poles, fences, lintels, staircase units.
Your machine: The SSM 50 produces pre‑cast blocks and pavers – exactly what the construction industry demands.
Method: Steel bars are tensioned before concrete is poured.
Uses: Bridges, long spans, roofs, structures with heavy dead loads.
Your opportunity: Advanced customers may need pre‑stressed elements. Not directly from a block machine, but good to know.
Property: Tiny air bubbles (3‑6% of volume) improve resistance to freezing/thawing.
Agents: Fatty acids, resins.
Uses: Road pavements, cold climates.
Aggregate: Recycled glass.
Benefits: Better thermal insulation, appealing look.
Your product: You can produce decorative glass pavers using SSM 50.
Curing time: Hardens in few hours.
Uses: Underwater construction, road repairs, fast‑track building.
Tip: Add superplasticizers to achieve rapid hardening.
Composition: Aggregates + asphalt.
Uses: Highways, airports, embankments.
Note: Different from cement concrete; not made by block machines.
Binder: Lime instead of cement.
Uses: Floors, domes (historical).
Today: Rare, but historically important.
Property: 15‑20% voids allow water to pass through.
Uses: Areas with stormwater issues.
Your product: You can manufacture permeable pavers with special moulds.
Placement: Pneumatically projected through nozzles.
Benefit: Compaction and placing done simultaneously.
Use: Tunnels, swimming pools.
Definition: Concrete prepared in a batching plant and delivered by transit mixers.
Your plant: Your SSM 50 can be part of an RMC setup.
Property: Compacts by its own weight, no vibration needed.
Uses: Large constructions, complex forms.
Advantage: Higher workability but higher cost.
Fibers: Steel, polymer, glass, carbon, or natural (coconut).
Length/Dia: 10‑50 mm / 10‑20 microns.
Benefits: Increases resilience, tensile strength, flexibility, crack resistance.
Your product: Add fibers to your fly ash bricks to make them even stronger.
Definition: Concrete in which fly ash (obtained from coal combustion) replaces fine aggregate or cement, or both.
Accepted replacement: Up to 30% of fine aggregate and 20% of cement.
Benefits:
Improves workability in fresh concrete.
Increases durability and strength in hardened concrete.
Uses waste material (fly ash) – environmentally friendly.
Reduces cost because fly ash is often free or very cheap.
Why Sitara Chemical chose it: Sitara’s own power plant produces fly ash. Instead of disposing of it, they now convert it into high‑quality bricks and blocks.
Strength: Over 40 N/mm² (≈ 5,800 PSI).
Properties: High strength, low shrinkage, self‑compaction, high fire resistance.
Your machine: The SSM 50 can produce 4,000‑5,000 PSI blocks easily, reaching high‑strength concrete levels.
Process: Monomers are impregnated into concrete pores and then polymerized.
Types: Polymer impregnated concrete (PIC), polymer Portland cement concrete (PPCC), polymer concrete (PC), surface coated.
Use: High durability, chemical resistance.
Construction: Closely spaced wire meshes impregnated with rich cement mortar.
Steel content: 300‑500 kg/m³.
Properties: High ductility and tensile strength.
Use: Pleasing structural forms, boats, shells.
Sitara Chemical’s captive power plant burns coal and produces fly ash as a by‑product. Before 2024, this fly ash was a disposal problem – costly to haul away and harmful to the environment if not managed properly.
The company decided to invest in a SSM 50 fully automatic fly ash brick and block making machine from Silver Steel Mills. The machine was delivered and installed in mid‑2024 at their Faisalabad complex.
| Parameter | Value |
|---|---|
| Model | SSM 50 (Fully Automatic) |
| Cycle time | 15‑20 seconds |
| Hydraulic pressure | 400 tons |
| Vibration motors | 20 HP × 2 (dual under‑bed & shaft) |
| Total power | 100 kW (running 65‑70 kW) |
| Pallet size | 889 × 1219 × 38 mm (custom) |
| Daily output (8‑10 hrs) | 50,000+ pavers / 15,000+ hollow blocks / 30,000+ fly ash bricks |
| Control | PLC + 15″ touch screen |
| Mould change | 15‑20 minutes |
| Material | Source | Cost |
|---|---|---|
| Fly ash | Own power plant | Free (waste) |
| Cement | Local (BestWay, DG) | Market price |
| Sand / Stone dust | Local crushers | Market price |
| Water | Plant supply | Minimal |
| Component | Percentage | Quantity per batch (approx.) |
|---|---|---|
| Fly ash | 50% | 500 kg |
| Cement | 20% | 200 kg |
| Stone dust | 27% | 270 kg |
| Water | 3% | 30 kg |
| Superplasticizer (optional) | 0.5% | 5 kg |
The SSM 50 runs two shifts (16 hours/day). Actual output:
| Product | Daily output (units) |
|---|---|
| Fly ash bricks (9″×4″×3″) | 32,000 – 35,000 bricks |
| Solid blocks (6″×8″×12″) | 12,000 – 15,000 blocks |
| Interlocking pavers (50 mm) | 45,000 – 50,000 pavers |
The machine’s dual high‑frequency vibration (20 HP × 2) and 400‑ton hydraulic pressure ensure that every brick achieves 4,500‑5,000 PSI – well above the Pakistan Building Code requirement of 3,000 PSI.
| Property | Test result | Standard required |
|---|---|---|
| Compressive strength (28 days) | 4,800 PSI | > 3,000 PSI |
| Water absorption | 7.5% | < 12% |
| Efflorescence | Nil | No visible |
| Dimensional tolerance | ± 0.5 mm | ± 2 mm |
| Component | Cost (PKR) |
|---|---|
| Fly ash | 0 (free) |
| Cement | 3.50 |
| Stone dust | 1.00 |
| Water + electricity | 0.50 |
| Labour + depreciation | 1.00 |
| Total cost per brick | ~6.00 PKR |
| Product | Selling price (PKR) |
|---|---|
| Fly ash brick (9″×4″×3″) | 12‑14 |
| Solid block (6″×8″×12″) | 35‑45 |
| Interlocking paver (50 mm) | 18‑22 per tile |
Daily production: 33,000 bricks
Cost per brick: 6 PKR
Selling price: 12 PKR (conservative)
Profit per brick: 6 PKR
Daily profit: 33,000 × 6 = 1,98,000 PKR
Monthly profit (25 days) : 49,50,000 PKR (≈ 50 lakh)
SSM 50 machine (complete with batching, mixers, conveyors, stacker): Rs 1.8 crore
Installation + moulds + pallets: Rs 20 lakh
Total investment: ~Rs 2 crore
Return on Investment (ROI) : 2 crore ÷ 50 lakh/month ≈ 4 months
“The machine paid for itself in less than half a year. Now we are generating pure profit while eliminating our fly ash disposal problem.”
– Plant Manager, Sitara Chemical Industries Ltd.
| Feature | Benefit |
|---|---|
| Heat‑treated moulds | Last 2‑3 times longer than normal steel moulds. |
| Imported bearings (NTN/Taiwan) | Reduce maintenance downtime. |
| Reconditioned European motors | Lower power consumption, reliable. |
| Hydraulic cooling system | Prevents oil overheating during 16‑hour shifts. |
| PLC with 15″ touch screen | User‑friendly, stores 100+ recipes. |
| Remote diagnostic port | Our engineers can troubleshoot online. |
The SSM 50 fly ash brick machine delivered to Sitara Chemical in Faisalabad is a testament to how industrial waste can be turned into a high‑profit construction material. By understanding the types of concrete and choosing fly ash concrete, you can:
Produce lightweight, high‑strength bricks and blocks.
Save on raw material costs (fly ash is often free).
Qualify for government subsidies (environmental incentives).
Achieve ROI in under 6 months.
Are you ready to start your fly ash brick business? Contact Silver Steel Mills today for a free site survey and a custom quotation for SSM 15, 18, 24, 28, 35, or 50 models.
Pakistan ke industrial hub Faisalabad mein concrete manufacturing aur waste recycling technologies tezi se tarakki kar rahi hain. Faisalabad ki sab se badi industrial units mein se ek, Sitara Chemical, ko apne operational waste aur thermal systems ke nateejay mein baray paimane par paida hone wali coal raakh (fly ash) ko dispose karne ke liye ek advanced aur eco-friendly solution ki zaroorat thi.
Is industrial waste ko aala tareen tameerati material (green construction assets) mein tabdeel karne ke liye, Sitara Chemical ne Pakistan ke leading machinery manufacturer Silver Steel Mills (SSM) se rabta kiya. Silver Steel Mills ne unki requirements ke mutabiq advanced design model SSM Heavy-Duty Fly Ash Bricks Making Machine kamyabi se deliver aur install kar di hai.
Is custom plant ki installation se Sitara Chemical ne na sirf apne waste management system ko behtar banaya, balki high-density structural products taiyar karke aik highly profitable money-making model bhi qaim kar liya hai.
Modern construction industry mein 100 se zyada qism ke concrete mixtures istemal kiye ja rahe hain. Magar industrial waste management aur energy conservation ke liye Fly Ash Concrete ko dunya bhar mein sab se aala tareen material mana jata hai.
Cement Replacement: Fly ash ko traditional mixtures mein fine aggregate ya portland cement ke sath 20% se 30% tak partially replace kiya jata hai. Iske particles aam cement se kahin zyada barik (finer) hote hain.
Workability & Durability: Fresh mixture ke andar fly ash shamil karne se material ki workability barh jati hai, aur jab concrete set ho kar sakht (harden) hota hai, toh iski compressive strength aur chemical durability aam laal eent (clay bricks) se kahin zyada behtar ho jati hai.
Low Porosity: SSM ki heavy mechanical compaction aur hydraulic systems concrete ke andar maujood micro-pores (barik surakhon) ko khatam kar dete hain, jis se eenton ke andar pani jazb karne ki salahiyat (water absorption) na hone ke barabar reh jati hai.
Sitara Chemical Faisalabad ki site par lagaya gaya yeh machinery setup special engineering modules ke sath aata hai, jo raw chemical ash ko heavy loading structures mein mold karta hai.
Aam concrete machines ke muqable mein fly ash bricks ko bind karne ke liye high static aur dynamic pressure ki zaroorat hoti hai. Is plant mein automatic design framework ke sath Heavy Hydraulic Multi-Valve Cylinders lagaye gaye hain, jo mould box par hazaron tons ka constant pressure daltay hain. Is pressure block se bani hui eentein 2000 PSI se lekar 3000 PSI tak ki high strength ba-aasaani haasil kar leti hain.
Plant ke sath high-speed synchronized conveyor system aur core aggregate mixer diya gaya hai, jo fly ash, sand, cement, aur lime (agar zaroorat ho) ko second ke hisab se uniform uniform mix deliver karta hai. Material direct automatic conveyor line se hota huwa machine ke storage hopper tak jata hai, jis se manual labor ki cost bilkul zero ho jati hai.
Sitara Chemical mein chalne wala yeh automatic setup premium quality wooden pallets par nonstop shifts run karne ke liye behtareen hai:
Daily Fly Ash Bricks Production: Yeh plant rozana 10,000 se zyarda high-strength fly ash bricks produce karne ki mukammal taqat rakhta hai.
Daily Interlocking Tuff Tiles Output: Agar designer pavements aur footpaths ke liye mould lagaya jaye, toh yeh unit rozana 15,000 premium rectangle ya H-section (Dumble) pavers deliver karta hai.
Fast Cycle Configuration: Iska automatic structure sirf 25 se 35 seconds ke aik single stroke mein bricks ya pavers ka aik poora pallet ready kar ke stacker unit par shift kar deta hai.
Google ranking algorithms ke mutabiq technical aur factual data sheet ko sab se zyada value milti hai. Neeche Faisalabad industrial unit par operational plant ka technical profile diya gaya hai:
| Operational Feature | Structural Specification (Silver Steel Mills) |
| Plant Model Deployed | SSM Heavy-Duty Fly Ash Series |
| Installation Site / Client | Sitara Chemical, Faisalabad |
| Primary Raw Material | Coal Fly Ash (Industrial Operational Waste) |
| Molding Output Cycle | 25 se 35 Seconds Per Single Pallet Stroke |
| Daily Structural Capacity | 10,000+ Bricks |
| Supported Products | Solid Blocks, Hollow Blocks, Uniblock, Curbstones, Clay-Replacement Bricks |
| Operation Control | Automatic Electrical Panel with Hydraulic Temperature Monitoring |
Silver Steel Mills ki expert erection team ne Faisalabad site par khud maujood reh kar is heavy plant ki mechanical alignment, automatic panel calibration, aur safety test-runs ko mukammal kiya. Sitara Chemical ke plant operators aur staff ko aggregate chemical ratio monitoring, hydraulic oil cooling systems, aur daily preventative maintenance ki professional practical training di gayi, taake bina kisi breakdown ke zero-waste production haasil ki ja sake.
Faisalabad mein Sitara Chemical ke haan is plant ki kamyab delivery is baat ka wazeh saboot hai ke Silver Steel Mills na sirf Pakistan mein construction machinery manufacturing ka un-disputed leader hai, balki hum baray industrial groups ko Eco-Friendly Waste-to-Wealth Engineering Solutions faraham karne mein sab se aage hain.
Agar aap chemical plants, textile units, steel mills, ya power plants ke owner hain aur rozana paida hone wali fly ash ya industrial waste ko high-profit construction assets (bricks, tiles, blocks) mein convert karna chahte hain, toh aaj hi Silver Steel Mills se rabta karein.
Customized Bill of Quantities (BOQ) Aur Free Site Assessment Ke Liye Rabta Karein:
This project represents a historic achievement, with the GT-50 machine boasting an impressive production capacity of up to 50,000 paver blocks per shift, stacking 50 pavers per pallet. This makes it the highest-capacity paver block machine ever installed in Pakistan.
Located at Sitara Group’s production facility in Faisalabad, the installation is redefining industry standards by delivering unparalleled automation, consistent quality, and exceptional output—setting a new benchmark for the local concrete block manufacturing sector.
GT-50 Fully Automatic High-Capacity Paver Block Machine
Produces 50 pavers per pallet with remarkable efficiency
Capable of manufacturing up to 50,000 pavers per shift
Features automatic vibration, material feeding, and pallet transfer systems
Equipped with precise hydraulic pressure molding technology
Operated through a fully integrated PLC control system with an intuitive touch screen interface
Supports custom paver designs and molds tailored specifically for Sitara Group projects
Specializing in Bulk Orders and Large-Scale Industrial Production
Comprehensive After-Sales Service, Maintenance, and On-Site Technical Support
Custom Mold Designs for Decorative, Heavy-Duty, and Interlocking Pavers
Export-Quality Machines Backed by Reliable Local Support
Used fly ash brick machines provide an affordable option for startups and small manufacturers in Pakistan. These pre-owned machines come at a fraction of the cost while still delivering reliable production capacity. Many contractors and industrial users prefer these machines due to their quick Return on Investment (ROI). Prices typically range from PKR 5 lakh to PKR 15 lakh depending on condition and capacity, making them ideal for entrepreneurs working with tight budgets.
OLX Pakistan offers a diverse selection of fly ash brick machines, from manual compact units to advanced fully automatic systems. As a popular local marketplace, OLX connects buyers and sellers directly, offering competitive pricing. On OLX, prices range widely from PKR 4 lakh to PKR 25 lakh depending on brand, model, and output capacity. This platform is perfect for price comparison and negotiating better deals with local suppliers.
Designed for small-scale operations, especially in rural and semi-urban areas, small fly ash brick machines are perfect for beginners with limited capital. These machines typically cost between PKR 3 lakh and PKR 7 lakh and can produce 500 to 1500 bricks per hour. Their compact size, ease of mobility, and low maintenance requirements make them popular among micro-industries and startups.
Automatic fly ash brick machines feature advanced hydraulic systems and PLC-based controls for precision and high-volume production. These machines minimize manual labor while ensuring consistent brick size and shape. Prices range from PKR 20 lakh to PKR 65 lakh, influenced by features such as production speed, brick size options, and power efficiency. They are ideal for medium to large-scale manufacturers seeking efficient mass production.
Brick making machine costs vary based on their type and production capacity:
Manual machines start at around PKR 2 lakh.
Semi-automatic machines typically range from PKR 8 lakh to PKR 15 lakh.
Fully automatic industrial-grade machines can cost upwards of PKR 70 lakh.
This range offers solutions suited to businesses of every size and production goal.
The demand for bricks making machines is surging in Pakistan due to booming construction activities and government infrastructure projects. From basic manual machines to sophisticated industrial plants, the market offers versatile options. Many entrepreneurs are adopting fly ash brick technology, which provides consistent quality, customizable sizes, and environmental benefits, utilizing fly ash — a sustainable byproduct of coal combustion.
Fly ash brick machines combine hydraulic compression and vibration to create dense, durable bricks. The production process involves:
Mixing raw materials (fly ash, cement, sand, lime) in a pan or planetary mixer.
Loading the moist mixture into molds via automated or manual systems.
Using PLC-controlled pressing cycles in automatic machines to ensure uniform pressure, size, and production efficiency.
Demolding bricks and placing them on pallets for curing, which typically takes 7 to 14 days using water or steam.
Key machine components include:
Raw material feeding hopper
Mixing unit for uniform blending
Brick mold press for shaping
Ejector or conveyor system for brick removal
This semi-to-fully automated process enables large-scale, eco-friendly brick manufacturing that lowers construction costs while providing excellent thermal insulation and strength.
Starting a fly ash brick manufacturing business is a lucrative option, given the rising demand for eco-friendly building materials and government emphasis on sustainable infrastructure. Key advantages include:
Low raw material costs, as fly ash is often freely supplied by thermal power plants.
Government incentives promoting green construction.
Growing market demand driven by real estate, road construction, and industrial development.
Attractive profit margins, typically Rs. 2 to Rs. 5 per brick depending on location and volume.
A semi-automatic plant investment of around PKR 20–25 lakh can generate monthly revenues of PKR 8–12 lakh in major cities such as Lahore, Karachi, Faisalabad, and Peshawar.
For optimal brick quality and cost-effectiveness, the typical material mix includes:
Fly Ash (50–60%): A reactive, silica-rich byproduct of coal combustion.
Sand or Stone Dust (20–30%): Provides structural integrity and minimizes shrinkage.
Cement (8–12%): Acts as a binder for strength and durability.
Gypsum/Lime (2–4%): Enhances early strength and workability.
Water: Added only to assist binding and molding.
Adjusting these proportions allows manufacturers to produce bricks tailored for specific applications such as load-bearing walls, paving, or insulation.
Land size depends on the scale and automation level of the plant:
| Plant Type | Land Required | Production Capacity |
|---|---|---|
| Manual Brick Unit | 500 – 800 sq. ft | 500 – 1,000 bricks/hour |
| Semi-Automatic Plant | 2,000 – 4,000 sq. ft | 2,000 – 4,000 bricks/hour |
| Fully Automatic Plant | 10,000+ sq. ft | 6,000 – 10,000 bricks/hour |
Additional requirements include curing area, raw material storage, vehicle access, and utility connections. A well-planned layout enhances productivity and lowers material handling costs.
Even semi-automatic plants operate efficiently with a team of 5 to 8 members:
1 machine operator
2–3 general laborers for material handling and curing
1 quality control supervisor
1 packaging and distribution staff
1 technical maintenance technician (optional for larger plants)
Proper training of staff ensures high product quality and extends machine lifespan.