What size dry mortar plant do I need for a medium factory? It's the question most buyers think they can answer by instinct, and the reason so many plants end up mismatched from day one. The two most common mistakes are speccing a line that's too small and hitting a production bottleneck within 18 months, or buying oversized capacity that can't run efficiently for years. Neither outcome is a good use of capital. This guide gives you a repeatable framework to avoid both errors: convert your production target into a required t/h figure, match it to the right plant class, and validate the choice against your floor space, power supply, and budget before you talk to any supplier.

For manufacturers exploring scalable options in the 5, 20 TPH range, modular dry mortar production line configurations designed around medium-factory constraints, covering everything from PLC-controlled batching to automatic bag packaging, are the right starting point. But before you look at any equipment spec sheet, you need to know exactly what you're sizing for.

What Size Dry Mortar Plant Do I Need for a Medium Factory, Defining the Tier

Before you can size a plant, you need a working definition of the tier you're operating in. The industry doesn't use a single universal label, but the most consistent pattern across equipment manufacturers places medium-scale dry mortar production between 5 and 20 tons per hour (TPH), with an annual output band of roughly 50,000 to 150,000 tons per year. On a standard single-shift operating schedule, that translates to a daily output of 25 to 100 metric tons. Understanding where your operation falls within the small vs. medium vs. large mortar plant spectrum is the first step toward a sound sizing decision.

From tons to bags: the numbers that matter on the floor

At 25 kg per bag, the most common fill weight in the U.S. market, one metric ton equals 40 bags. A medium-scale plant running at 50 tons per day produces approximately 2,000 bags. A plant running at 100 tons per day produces around 4,000 bags. These are the figures your production schedule actually runs on, and they're the right starting point for any capacity calculation.

How product mix shifts your baseline

Tile adhesive, wall plaster, and grout don't consume machine time equally. A line running three to four SKUs with frequent formula changeovers operates at lower effective throughput than one running a single product continuously. Medium factories producing a diverse mix should assume 15, 20% lower effective daily output than nameplate capacity suggests, before any efficiency buffer is applied. On a well-automated line with fast recipe switching, that loss stays manageable; on a semi-automatic plant, it can be significant.

How to Calculate What Size Dry Mortar Plant You Need

This is the math most buyers skip, and it's the reason so many plants end up mismatched. The conversion from a production target to a required t/h figure is straightforward once you nail down three inputs: your daily output target in bags, your bag fill weight, and your effective operating hours per day.

The bags-per-day to t/h formula

The formula is: t/h = (bags/day × kg per bag) ÷ (1,000 × operating hours/day). A factory targeting 2,500 bags per day at 25 kg per bag, running a single 8-hour shift, needs a plant rated at: (2,500 × 25) ÷ (1,000 × 8) = 7.8 t/h. That result puts you squarely in the 10 TPH class once you apply a standard efficiency buffer.

Why you should never buy at 100% nameplate capacity

Plan your required throughput at 70, 80% of the plant's rated nameplate capacity. Equipment doesn't run at peak output continuously. Maintenance windows, formula changeovers, raw material feed variations, and packaging line pauses all consume clock time. A plant rated at 10 TPH reliably delivers 7, 8 t/h under normal production conditions, which means a 7.8 t/h requirement genuinely needs a 10 TPH plant, not a 5 TPH one.

A quick worked example for a medium-factory scenario

Target: 3,000 bags per day, 25 kg bags, two 8-hour shifts (16 operating hours). Calculation: (3,000 × 25) ÷ (1,000 × 16) = 4.7 t/h required at nameplate. Apply the 80% utilization rule: 4.7 ÷ 0.8 = 5.9 t/h minimum rated capacity. This buyer needs a plant rated at least 5 TPH, with a 10 TPH line being the wiser long-term investment if any growth is planned within three years. The key takeaway: that calculation tells you not just what you need today, but how much headroom you're building in for tomorrow.

The 5, 10, and 20 TPH Plant Classes Side by Side

Once you have your t/h figure, matching it to a standard plant class is the next decision. The three classes most relevant to medium factories are 5 TPH, 10 TPH, and 20 TPH. Each serves a distinct production profile, and the differences go well beyond raw throughput numbers. 

What each class handles in practice

A 5 TPH plant suits factories producing one to two product types at moderate volume, typically 50, 80 tons per day on a two-shift schedule. A 10 TPH plant is the workhorse of the medium-factory segment, capable of handling three to five SKUs, supporting multi-shift operation, and producing up to 160 tons per day. A 20 TPH plant begins to blur into large-scale territory but stays manageable for medium-factory footprints when configured in a modular tower layout with integrated PLC batching and servo weighing.

When stepping up a class makes financial sense

The cost gap between a 5 TPH and a 10 TPH plant is rarely proportional to the throughput difference. If your volume projections show 15, 20% growth within three years, buying the next class up at the outset avoids the far more expensive process of retrofitting or replacing a plant that has been outgrown. The upgrade penalty on a mismatched plant typically runs to 60, 80% of the original equipment cost, which makes the upfront calculus look very different.

Footprint, Power, and Site Requirements by Capacity Class

Capacity on paper has to fit in your building. The figures below give you practical site planning benchmarks so you can validate feasibility before committing to a configuration. Get these confirmed with your facilities team before you request a single quote.

Typical floor space requirements

• 5 TPH: 200, 400 m² of production floor area (compact tower configuration, including raw material storage and packaging station)
• 10 TPH: 400, 700 m²
• 20 TPH: 700, 1,200 m², depending on whether storage silos are integrated or external

Ceiling height is a factor most buyers underestimate. Medium-capacity tower lines typically require 8, 14 meters of clear vertical space for the mixing tower and elevator structure, confirm your facility's clearance early.

Installed power draw and utility connections

• 5 TPH: 75, 120 kW installed electrical capacity
• 10 TPH: 120, 200 kW
• 20 TPH: 300+ kW, depending on dryer integration and automation level

Compressed air supply at 6, 8 bar is required for pneumatic conveying and valve bag packaging; a dedicated compressor rated for the plant's demand is standard, with most plants drawing around 0.6 m³/min at the point of use. Water supply requirements are minimal for dry mortar lines but should account for dust suppression and routine utility use.

CapEx and OPEX Reality for Medium-Capacity Lines

Planning numbers give buyers a foundation for serious conversations with suppliers. The ranges below reflect real project data rather than brochure estimates, and they include cost categories that often get left out of early-stage budgeting.

Equipment and installation cost ranges

For a 5, 10 TPH turnkey line covering equipment, freight, installation, and commissioning, expect a total project investment in the range of $250,000 to $450,000 for a standard configuration. A fully automated 10, 20 TPH line with PLC batching, servo weighing, and automatic bag packaging typically runs $400,000 to $600,000 installed. These figures are FOB-origin baselines and will increase with U.S. freight costs, Section 301 tariff exposure on Chinese industrial equipment, and site preparation. Buyers in high-construction-activity states like Texas, Florida, and California should also factor local permitting and OSHA compliance requirements into their project budget.

Annual OPEX and the 10-year ownership picture

Annual operating costs for a medium dry mortar plant, covering labor, electricity, maintenance, and packaging materials, typically fall between $50,000 and $250,000 per year, scaling with automation level and throughput. The critical insight most buyers miss: equipment purchase price represents only 22, 35% of 10-year total cost of ownership. Choosing a plant based on the lowest sticker price while ignoring energy efficiency, maintenance parts availability, and after-sales support is a reliable way to pay more over time, not less. A well-supported line with English-language documentation, remote commissioning capability, and responsive engineering support, the baseline QINGCHI delivers, reduces those lifecycle costs in ways that don't show up in the initial quote.

The 5-Point Spec Checklist Before You Request a Quote

Walk into any supplier conversation with these five numbers defined. Suppliers who can't map their line configurations directly to your answers aren't worth your time.

The five questions every medium-factory buyer must answer first

• Required throughput in t/h: Use the formula from the section above. This is your non-negotiable starting number.
• Product mix and SKU count: List every product type you plan to run. Multi-product lines need larger mixing chambers and faster changeover design.
• Available floor space and ceiling height: Give exact dimensions, not estimates. A tower configuration that requires 12 meters of vertical clearance won't fit in a standard warehouse.
• Power supply capacity at the facility: Know your incoming voltage, phase configuration, and maximum kW allowance before specifying a plant.
• Automation level and packaging format: Decide whether you need manual, semi-automatic, or fully automatic bag filling, and at what bag weight. This single decision has a large effect on both CapEx and ongoing labor costs.

Why modular line configurations matter for medium factories

Medium factories rarely run at a fixed output for their entire lifespan. Modular production line designs, available across the 5, 20 TPH range, allow capacity to be expanded by adding mixing or batching modules rather than replacing the entire plant. That's a fundamentally different economics model than buying a fixed-capacity line and scrapping it when demand grows. For a medium factory with realistic growth ambitions, a configurable line with PLC-controlled batching, anti-segregation mixing structures, and scalable packaging integration is not a premium option. It's the sensible baseline. QINGCHI's modular dry mortar production line configurations are built specifically around this principle, giving medium-scale operators a path to expand without starting over.

Size It Right the First Time

Getting the right dry mortar plant size for a medium factory is a calculation problem, not a guessing game. Start with your real production target in bags per day, convert it to t/h using the formula in this guide, apply a 20, 25% efficiency buffer, and match the result to the 5, 10, or 20 TPH class. Then validate the choice against your floor space, power supply, and 10-year ownership cost before you finalize any specification.

If you're still asking what size dry mortar plant you need for a medium factory, run your numbers through the formula above and cross-check the result against the footprint and power figures in this guide. For medium-factory buyers in the 5, 20 TPH range, the right plant is rarely the cheapest one. It's the one that fits your current output, accommodates the next three years of growth, and doesn't require a full replacement when volume picks up. If you're ready to validate a specific line configuration against your production target, QINGCHI's engineering team can map your requirements directly to a matched equipment spec.