Fast-Square vs CoilTrim: Which Standalone Coil Slitting Optimizer Fits Your Line?

What Fast-Square does well

Fast-Square started with a cutting-plan optimizer for slitters and cut-to-length lines and grew it into a supply chain suite for steel service centers. The vendor calls the result a "world-wide unique niche solution", and the module list backs up the breadth. CCO-Replenishment forecasts demand and sizes coil purchases, with compatibility tables for steel grades and special handling for quarterly and yearly customer contracts. CCO-Scheduler sequences work orders against capacity, machine constraints and work-order dependencies. CCO-Planning calculates capacity and promise dates and lets you simulate extra shifts or overtime. CCO-MES talks to the machines and adds a promise-date view for the sales desk.

The optimizer itself has an unusual pedigree. Its algorithm, published by E. Bertolotti, E. Castaldo and G. Giannone (Gino Giannone is Fast-Square's CEO), received the IAAI award from the American Association for Artificial Intelligence, and Franz Inc. describes it generating hundreds of optimized cutting patterns in a fraction of a second so that even a less experienced planner can choose among them. Published constraints include minimum and maximum strip outside diameter and weight, the machine's maximum knife count and minimum strip width. Case studies on the vendor site include Acciaieria Arvedi, Eusider, Marcora, Cobral, Aartee and Mimosa, and the company says the optimizer runs at several service centers in Europe and Brazil.

What CoilTrim does well

CoilTrim is narrower and says so. Tieto describes it as an industry-proven optimizer for cutting metal coils into smaller strips, with objectives that cover width-wise and length-wise waste, profit, knife changes and setups. Instead of a single answer, it typically presents five candidate solutions that the planner can compare and edit.

The advanced functions go into territory most optimizers skip. CoilTrim can account for coil defects, plan make-to-stock side runs, and, through an optional module, find the best coil size to order within a range. Tieto cites more than 50 implementations in several countries and a typical saving of more than 1% of input material. The interface ships in six languages, and a Copilot add-on listed on SoftwareOne uses a GPT-4o model for documentation help and ad hoc graphical reporting.

Where each one stops short

For Fast-Square, the gaps are mostly in what is published. We found no ERP connectors named on the product page and no description of how orders and coil inventory get in or how finished plans get back out. Much of the detailed public material is older: the trade write-up is from 2008, and Franz Inc.'s page describes plans to start selling in the US in 2016 without saying whether that happened. We found no North American customers named. Capterra lists Italy as the only country and Italian as the only language, which is worth confirming with the vendor before a North American evaluation.

For CoilTrim, the gaps are different. We found no named customers or case studies, so the 50-plus installs and the 1% figure are hard to check against a shop like yours. It runs as a Windows application. The product page does not mention PIW or coil-weight limits, which does not mean it lacks them; ask. Its Copilot add-on is aimed at documentation and reporting, not at the order desk.

Three slitting-floor jobs, side by side

A wide master coil and a handful of order widths

Both products exist for this, and both hand the planner more than one answer. Fast-Square's optimizer generates a set of patterns that minimize trim loss and setup time within its knife and strip limits. CoilTrim typically returns five, scored against waste, profit, knife changes and setups, and lets the planner edit them, so a planner can take the one that saves a setup at the cost of a little trim if the line is behind. Ask each vendor to show how the options are ranked on your own orders.

A coil with a known edge defect

CoilTrim publishes coil-defect handling as a feature. Fast-Square's product page does not mention defects, so if your inventory carries flagged coils you plan around rather than scrap, test both with real tags from your yard.

Deciding what to buy next quarter

Fast-Square's CCO-Replenishment forecasts demand, lets you aggregate by steel quality, coating type and surface, and sizes coil purchases. CoilTrim's coil-ordering module answers a narrower question: which coil width, within a range, cuts best against the orders you have. A buyer placing mill orders by the quarter gets more from the first; a planner deciding between a 48-inch and a 60-inch master gets a direct answer from the second.

Pricing and buying

The Capterra figure comes from a listing, not from Fast-Square, so treat it as a starting point for a conversation. Neither vendor publishes implementation timelines.

Can you use both?

Not usefully. They solve the same cutting problem, and running two optimizers against one order book means two answers to reconcile every morning. The realistic pairing is either one of them with your ERP and, for Fast-Square, possibly its own scheduler and MES modules. Pick the one whose surrounding pieces match the gaps you actually have.

The bottom line

Fast-Square fits a service center that wants a suite built around the optimizer, from coil buying to the machine interface. CoilTrim fits a team that wants a focused, multilingual optimizer with defect handling, a defined set of interfaces and a ranked short list of plans. Before you sign either, run your own last 90 days of orders through it. We also compare each one with our own product: LineSight vs Fast-Square and LineSight vs CoilTrim.