Best Production Scheduling Software for Plastics Manufacturers 2026

As of October 2026, the best production scheduling software for plastics manufacturers is SkyPlanner APS, with a weighted total of 100 out of 100. It leads because it treats a shared mold or tool as a resource that cannot be in two places at once, and because it gives each job its own changeover time and groups similar jobs so a mold or color change happens once per group. Autopilot then reschedules continuously with the Arcturus engine when an order, press or material changes. The price is public: from 199 euros per month, 5 workstations included, 20 euros per month per extra workstation, with a 30-day trial without a card for up to 20 workstations. Siemens Opcenter APS, ranked #2 with 66, is the better choice if sequence-dependent changeovers calculated from operation attributes are your deciding requirement and you are ready to buy through a sales quote. ROB-EX Scheduler ranks first on our process industry list and Asprova on our enterprise multi-plant list, not here. Prices and trials on this page were last verified on 13 October 2026.

Who this list is for

This list is for plants that make plastic parts and products in orders and runs: injection molding, blow molding, thermoforming, rotational molding and order-based extrusion. The scheduling problems are concrete. A mold fits only some presses, and the same mold is wanted by two urgent orders. A color or material change costs purge time and scrap, so the order of jobs on a press matters as much as their dates. Customers send rush orders and schedule changes at short notice, and a press or mold going down moves every later job.

• Size: any size, from a single molding shop to multi-site groups.
• Production type: discrete parts in batches and runs, often with assembly, printing or packing after molding.
• ERP: with or without one; a scheduler that connects to your ERP, or an ERP with planning built in.
• Budget: from a public monthly subscription to enterprise systems sold by quote; quote-only prices score lower on price.

This list is not for: continuous polymer and compound production (see the process industry list), plants that mainly want shop-floor data collection (see the MES list) or a free plan (see the free and open-source list).

How we ranked production scheduling software for plastics manufacturers

Six criteria are weighted for plastics, fixed before any vendor was scored. Scores come from vendor sites, pricing pages, documentation and case studies; a capability the vendor does not publish scores zero.

• Finite capacity scheduling depth, 25 percent: the schedule must respect press, shift, material and labor limits, or the plan books more press hours than exist.
• Mold and tool availability constraints, 20 percent: a mold is often the scarcest resource in the plant, and a schedule that books one mold on two presses fails on the floor.
• Sequence-dependent setup optimization, 20 percent: the changeover time from one job to the next depends on the pair, so the order of jobs decides how much capacity is lost to mold, color and material changes.
• Automatic rescheduling, 15 percent: rush orders and press stoppages are daily events, and the plan should update itself rather than wait for a planner.
• ERP integration path, 10 percent: orders, materials and confirmations have to flow both ways with the ERP.
• Public price and SME affordability, 10 percent: a published price lets a plant budget before a sales call.

Weighted scores add up to a total out of 100. Asprova and PlanetTogether tie at 54 as of October 2026; one verified fact raising PlanetTogether on mold and tool constraints from 3 to 4 would lift it to 58 and past ROB-EX Scheduler at 57. The full rules are on our methodology page.

Comparison table

Every ranked vendor side by side, each fact as of October 2026.

#	Product	Category	Entry price	Free trial	Finite capacity	Auto reschedule	ERP path	Score
1	SkyPlanner APS	APS	From €199/mo	30 days, no card	Yes	Autopilot	REST API (both directions), webhooks, CSV import; connects to any ERP or MES; customer projects have connected SAP, Microsoft Dynamics 365, Odoo, Epicor, Sage and Siemens	100
2	Siemens Opcenter APS	APS	Quote	30 days	Yes	Dynamic schedule adjustment in real time	ERP, MES (generic)	66
3	ROB-EX Scheduler	APS	Quote	None	Yes	Real-time rescheduling and what-if scenarios; trigger not described	ERP and MES connectors (generic)	57
4	Asprova	APS	Quote	Free trial download after free Asprova ID registration; length not stated	Yes	not described	SAP, QAD, JD Edwards, Dynamics AX	54
5	PlanetTogether	APS	Quote	None	Not stated	not stated (alerts and rescheduling tools)	SAP, NetSuite, Kinaxis Maestro, AVEVA, Aptean Ross ERP; also John Galt, Shiftboard	54
6	Odoo Manufacturing	Open source	€19.90/user/mo	Free tier	Yes	Dependent work orders reschedule when a planner moves one in the Gantt	Native ERP; external API on the Custom plan only	46
7	DELMIA Ortems	APS	Quote	None	Yes	fast rescheduling after disruptions; trigger not described	Generic ERP connectors; SAP adapter, Sage X3 connector	43
8	just plan it	APS	Free	30 days (Starter)	Yes	Automatic rescheduling with real-time reprioritization from shop-floor updates	Microsoft, SAP, Sage; API for SQL-based ERPs; Excel	40
9	Monitor ERP	MRP-ERP	€93/user/mo	None	Not stated	not documented	Native ERP; nesting, PDM, CAD, EDI	37
10	MRPeasy	MRP-ERP	$49/user/mo	15+15 days, no card	Yes	partial (quantity change on unstarted order replans)	Native ERP; QuickBooks Online, Xero, Salesforce, HubSpot, Shopify, WooCommerce, Zapier, EDI; API and webhooks on paid plans	35

What makes scheduling in plastics manufacturing hard

Five constraints make plastics scheduling harder than a generic job shop schedule:

1. Mold and press compatibility. Each mold runs only on presses with the right size and clamp force, so the schedule has to book a mold and a matching press together.
2. Color and material sequences. Running light to dark colors and grouping the same resin cuts purge time and scrap; a random order wastes both.
3. Mold changeovers and lot rules. A mold change stops the press for setup and first-part checks, so planners set minimum run quantities and combine orders for the same part into one run.
4. Mold maintenance. Molds go out of service for cleaning and repair, and the schedule must block them for that time.
5. Rush orders and secondary operations. Urgent orders arrive at short notice, and molded parts often wait for assembly, printing or packing, so one change moves several work centers.

Ranked first elsewhere

Other kinds of plants have other winners. As of October 2026 these vendors rank first on our other lists:

• Process industry: ROB-EX Scheduler, weighted total 88.
• Enterprise multi-plant: Asprova, weighted total 84.
• AI rescheduling for enterprises: Kinaxis, weighted total 87.
• MES: Odoo Manufacturing, weighted total 90.
• Free and open source: ERPNext, weighted total 100.
• Metal fabrication: SkyPlanner APS, weighted total 84.
• Job shops: SkyPlanner APS, weighted total 100.

Related: guides on finite vs infinite capacity and automatic rescheduling; industry lists for contract manufacturers, electronics, food and beverage, furniture and wood, job shops, machine shops, make-to-order, metal fabrication, packaging, pharma and process and batch.