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AAC Batching System

Automated SCADA-controlled dosing and weighing system for consistent AAC block mixture quality.

Maruti Hydraulics Limited specializes in the manufacturing and supply of high-performance AAC Batching Systems, including India's first complete SCADA (Supervisory Control and Data Acquisition) batching system for AAC block plants — commissioned in 2023. The batching system is the central intelligence of an AAC block plant: it controls the precise dosing of every raw material — fly ash or silica sand slurry, cement, lime, gypsum, water, and aluminium powder — in exact proportions required by the block density formulation. Even small variations in aluminium powder dosing of 0.1% can cause visible density variation between batches. Maruti Hydraulics' SCADA batching system achieves ±0.5% dosing accuracy across all raw materials, eliminating the batch-to-batch density variation that is the primary cause of AAC block quality complaints in India. The completely automated dosing and mixing operation requires minimum human intervention, monitored and logged by computer systems for consistent block quality batch after batch, shift after shift.

Manufacturer: Maruti Hydraulics Limited — ISO 9001:2015 certified, Nashik, Maharashtra, India. Exporting to Nepal, UAE, South Africa, Singapore, Bangladesh, and Sri Lanka.

Key Specifications: Fully Automated SCADA | ±0.5% Dosing Accuracy | High Precision Load Cells | Integrated Control

Technical Specifications

Control SystemSCADA (Supervisory Control and Data Acquisition) — computer-monitored with automated feedback loops
Dosing Accuracy±0.5% across all raw materials (fly ash/sand, cement, lime, gypsum, water, aluminium powder)
Weighing TechnologyHigh precision digital load cells for each raw material
Materials HandledFly ash slurry, silica sand slurry, cement, lime, gypsum powder, water, aluminium powder
Data LoggingBatch-by-batch production records with timestamp, operator ID, and raw material dosing log
Remote AccessInternet-based SCADA monitoring for plant owner and Maruti Hydraulics support team
SafetyEmergency manual override provisions, alarm-on-deviation, automatic batch hold on weighing error
Industry FirstIndia's first complete SCADA batching system for AAC block plants (2023)

Key Features

  • India's first complete SCADA batching system for AAC block plants — commissioned 2023
  • ±0.5% dosing accuracy across all raw materials, eliminating batch density variation
  • High precision digital load cells for each raw material with automatic tare correction
  • Computer-monitored SCADA system with real-time batch monitoring and automatic feedback
  • Batch-by-batch data logging: timestamp, operator, raw material weights, deviation alerts
  • Internet-based remote SCADA access for plant owner monitoring from any device
  • Emergency manual override provisions for safety during system faults
  • Automatic batch hold and alarm-on-deviation if any material weight falls outside tolerance
  • Recipe management: store multiple block density formulations and switch with a single command
  • Minimum human intervention reduces labour dependency and eliminates operator-induced quality variation
  • Integrated with raw material silos: automated valve sequencing and conveyor interlocking
  • Supports both fly ash slurry-based and silica sand slurry-based AAC formulations

Manufacturing Process

  1. Slurry Preparation and Silo Level Monitoring — The SCADA system monitors real-time raw material levels in all silos (flyash, cement, lime, gypsum) and triggers low-level alarms before any silo empties. Fly ash or silica sand slurry is prepared in the underground mixing tank and pumped to the weighing station. Slurry density is continuously monitored to compensate for water content variation between fly ash deliveries.
  2. Recipe Selection and Batch Authorisation — The plant operator selects the target block density formulation (e.g. Grade B600, B700, or AAC Panel grade) from the SCADA recipe library. The system calculates the exact raw material quantities required for one batch and presents them on the operator screen for authorisation before the batch begins. Unauthorised recipe modifications are logged and flagged.
  3. Sequential Weighing and Dosing — Each raw material is weighed sequentially in its dedicated load cell hopper. The SCADA system opens each supply valve, monitors the load cell reading in real time, and closes the valve precisely at the target weight. If actual weight deviates from target by more than the tolerance band (±0.5%), the system issues a correction command or, for large deviations, holds the batch and alerts the operator.
  4. Aluminium Powder Dosing — The Critical Step — Aluminium powder dosing is the most critical and sensitive step in AAC batching. Even 0.1% variation in aluminium dosing can cause visible density differences between blocks. The Maruti SCADA system uses an independent high-precision micro-dosing mechanism for aluminium powder with a dedicated ultra-precise load cell, separate from the main raw material weighing station, ensuring aluminium dosing accuracy within ±0.2% of target.
  5. Discharge into Mixing Vessel and Timing — After all materials are weighed and verified, the SCADA system initiates sequential discharge into the high-speed mixing vessel. Mixing time is precisely controlled (typically 4–6 minutes) based on the block grade formulation. The system monitors mixing motor current as a proxy for mix viscosity and can extend mixing time if the target consistency has not been achieved.
  6. Mould Filling and Batch Record Creation — The mixed AAC slurry is discharged into the mould while the SCADA system creates a complete batch record: date, time, operator ID, actual raw material weights, deviation from target for each material, mixing time, and the mould number the batch was poured into. This traceability links finished block quality data back to the specific batch parameters, enabling systematic quality improvement.

Maruti Hydraulics manufactures AAC Batching Systems including India's first complete SCADA batching system for AAC block plants, commissioned in 2023. Our SCADA system achieves ±0.5% dosing accuracy across all raw materials — fly ash or silica sand slurry, cement, lime, gypsum, water, and aluminium powder — eliminating the batch density variation that is the primary cause of AAC block quality complaints. The system includes recipe management, batch-by-batch data logging, internet-based remote monitoring, automatic deviation alarms, and operator-independent batch authorisation. Every Maruti Hydraulics AAC plant above 300 CBM/day is now supplied with SCADA batching as the default control configuration.

Additional Services

  • SCADA system commissioning with on-site calibration of all load cells and flow valves
  • Operator training: SCADA screen navigation, recipe management, batch authorisation, alarm response
  • Remote SCADA diagnostics for ongoing support after commissioning
  • Raw material formulation support: block density targets, aluminium dosing rates, lime reactivity adjustment
  • Annual calibration service for load cells and weighing systems
  • SCADA software upgrades for plants commissioned by Maruti Hydraulics

Part of the complete AAC Block Plant turnkey system. This equipment is one of 9 integrated subsystems. See the complete AAC Block Manufacturing Plant →

About Maruti Hydraulics — AAC Block Plant Manufacturer in India

This equipment is part of the complete AAC block plant range manufactured by Maruti Hydraulics Limited, an ISO 9001:2015 certified AAC block plant manufacturer in India since 1991. MHPL supplies turnkey AAC plants from 150 CBM/day to 1200 CBM/day — the widest capacity range offered by any single Indian manufacturer. Industry firsts include India's first wire cutting machine (2007), India's first complete SCADA batching system (2023), and India's largest 1200 CBM/day plant (2024).

Learn more about Maruti Hydraulics as an AAC Block Plant Manufacturer in India →

Why Maruti Hydraulics Customers Choose Us — 33 Years of Construction Machinery Engineering

Maruti Hydraulics Limited was established in 1991 in Nashik, Maharashtra and has since grown into one of India's leading construction machinery manufacturers. Over three decades, the company has delivered more than 200 turnkey projects across India and internationally — including plants in Nepal, UAE, South Africa, Singapore, Bangladesh, and Sri Lanka. Every machine leaves the Nashik factory after pre-wiring, function testing, and hydraulic pressure testing. Field installation is faster, and first-batch production quality is consistent because the machine was already proven at the factory before it was shipped.

ISO 9001:2015 Certified Manufacturing

Maruti Hydraulics holds ISO 9001:2015 certification — the internationally recognised quality management system standard. Our quality management system covers the complete product lifecycle: design and development, raw material procurement, manufacturing, inspection and testing, packaging, installation, commissioning, and after-sales service. ISO 9001:2015 certification means every process in the Nashik factory is documented, measured, and audited. For buyers, this means consistent product quality from order to order, traceable components and materials, systematic corrective action when non-conformances occur, and a manufacturer who has externally verified quality practices. The IS 9001 certification applies to all products manufactured and supplied by Maruti Hydraulics, covering the complete range from AAC block plant subsystems to flyash brick machines, paver block machines, dry mortar plants, and Pre-Engineered Buildings.

In-House Manufacturing — No Import Dependency on Critical Components

A significant portion of Maruti Hydraulics' advantage comes from in-house manufacturing at the Nashik factory. Pressure vessels (autoclaves and hoppers), structural steel frames, hydraulic cylinders, SCADA control panels, silo structures, and conveying equipment are all fabricated at Nashik. This translates to three practical benefits for customers. First, quality control is direct: we inspect every weld, every machined dimension, and every hydraulic fitting — not a subcontractor or an import agent. Second, lead times are predictable: we are not dependent on import schedules or third-party backlogs. Third, customisation is feasible: non-standard dimensions, custom capacity configurations, or special materials can be engineered at the factory without external subcontracting. Indian-manufactured critical components also mean spare parts are available in India, not on a 12-week import cycle from Europe or China.

After-Sales Support — Spare Parts Within 36 Hours Anywhere in India

The total cost of ownership of a construction machine includes not just the purchase price but the cost of unplanned downtime, spare part delays, and troubleshooting time. Maruti Hydraulics maintains a spare parts inventory at the Nashik factory for all machines currently in active production. Standard spare parts — hydraulic seals, conveyor belts, drive chains, level sensors, control panel components, and consumable wear parts — are dispatched within 36 hours by express courier to any location in India. For critical mechanical breakdowns, a Maruti Hydraulics field engineer can be on-site within 48–72 hours in most Indian states. Annual Maintenance Contracts (AMC) are available for all plant owners who want scheduled preventive maintenance and priority emergency response commitments. For SCADA-equipped plants, remote diagnostics allow the Nashik engineering team to diagnose batching and automation issues over a secure internet connection without requiring a field visit — reducing troubleshooting time from days to hours.

Project Financing Assistance — DPR and Bank Loan Support

Most investors in construction machinery projects require bank or NBFC financing to fund a significant portion of the capital expenditure. The core document required by lending institutions for project finance approval is the Detailed Project Report (DPR), which must include: technical specifications of all machinery and civil works, a capacity utilisation projection (monthly and annual), raw material cost assumptions, revenue projections, and evidence that the machinery supplier is credible. Maruti Hydraulics assists every customer with DPR preparation, providing technical specifications, equipment quotations, reference plant performance data, and capacity utilisation benchmarks from comparable operating plants. We work closely with multiple MSME lending institutions across India and have supported customers in obtaining financing from SBI, Canara Bank, SIDBI, and various state government industrial development corporations and financial institutions. DPR assistance is provided at no additional charge for customers who place a confirmed equipment order.

Reference Plant Visits — See the Equipment in Actual Production

Maruti Hydraulics arranges visits to existing customer plants so prospective investors can see the machinery in live production, not in a showroom demonstration. During a reference plant visit, you can observe a full production cycle from raw material batching to finished product, speak directly with the plant owner and production team about their experience with the machinery and after-sales support, inspect machine condition after 1–5 years of continuous operation, and get an honest assessment of what it takes to run the plant profitably. Reference plant visits are arranged for serious investors and are conducted without prior notice to the plant operator — ensuring you see real production conditions, not a staged demonstration. This transparency is central to Maruti Hydraulics' business model and a key reason the company has a strong repeat customer base and referral rate among Indian construction machinery buyers.

Sustainability and Fly Ash Utilisation

Several Maruti Hydraulics products directly support India's industrial waste utilisation goals. AAC block plants, flyash brick machines, and paver block machines are designed to consume fly ash — the industrial by-product of coal-fired thermal power stations — as a primary or supplementary raw material. Under India's Ministry of Environment, Forest and Climate Change fly ash utilisation notification, thermal power stations are required to achieve 100% utilisation of generated fly ash and must provide it free to downstream users. Manufacturers using fly ash as raw material benefit from near-zero raw material cost for the silica or pozzolanic component, while simultaneously reducing the environmental liability of ash disposal for power stations. Maruti Hydraulics provides mix design guidance for local fly ash chemistry as part of every AAC plant and flyash brick machine commissioning.

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Frequently Asked Questions

Why is SCADA batching important in AAC manufacturing?

SCADA (Supervisory Control and Data Acquisition) batching eliminates human error in material weighing and dosing, ensuring repeatable block density shift after shift. It controls fly ash slurry, cement, lime, gypsum, aluminum powder, and water ratios down to the gram. Automated batching reduces waste, improves quality consistency, and can lower rejection rates to near zero. Maruti Hydraulics was the first Indian company to build a complete automatic batching and mixing system.

Related Reading & Case Studies

  • Case Study: 1200 CBM/Day Plant with SCADA Batching (Siporex Overhaul)
  • SCADA vs Manual AAC Plant Control: Why Automation Pays Back in 18 Months
  • SCADA Batching in AAC: Why Repeatable Density Matters

Contact & Pricing

Maruti Hydraulics Limited — Phone: +91-253-2308131 — Email: info@marutihydraulics.com

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