String vs. Free-Fall Pinsetters: Which Is Right for Your Bowling Alley?

In this article: A clear comparison of string and free-fall pinsetters—how they work, where each fits, and what the USBC’s 2025 string-pin decision means for a commercial venue deciding what to install.

How each technology works

A conventional free-fall (free-fall) pinsetter sweeps and resets pins using a moving mechanism under the pin deck; pins sit freely on the deck and are reset by a table and respot cell. A string pinsetter attaches a thin, high-strength cord to each pin; after a throw, the strings lift the fallen pins and lower them back into position, with no pit and no moving sweep bar beneath the deck. Both can deliver a normal game for bowlers, but they achieve the reset very differently, which changes maintenance, noise, and operating cost.

Maintenance and moving parts

The operating difference buyers care most about is service exposure. A traditional pinsetter relies on a larger set of moving components (sweep arms, respot cells, distributor, belts, and linkages) that need regular adjustment and wear-part replacement. A string machine removes most of that under-deck mechanism: the key wear item is the set of strings and the lift/reset assembly, so routine maintenance is simpler and downtime tends to be easier to diagnose. Xushida’s StringX is built around high-precision servo control for millisecond-level response and zero-error pin placement, and it is compatible with common AMF 8290 and Brunswick GS98/GSX spare parts, which helps venues keep familiar consumables in stock. Exact maintenance intervals and part counts should be confirmed against the manufacturer’s maintenance schedule for your model.

Where the USBC stands in 2025

Certification is the part buyers most often get wrong, so it is worth being precise. In August 2025, USBC announced that string pin bowling would be included in official certified competition, with the new rules and specifications taking effect August 1, 2026 for the 2026–2027 season. In practical terms: string pinsetters are no longer a “casual-only” technology—they have a defined path into certified play—but a venue planning sanctioned leagues should confirm that the specific model it buys is certified to the USBC string-pin specification, rather than assuming every string machine qualifies. Xushida’s StringX is certified for USBC string-pin competition (2025). Note this is a competition-type certification for the string category; it is distinct from the separate, numbered lane-surface certificate (Xushida’s LaneX synthetic lane carries the public number USBC #001-25-LP).

Cost, install, and retrofit

String machines generally carry lower maintenance exposure and a simpler mechanical bill of materials, which is why the industry has shifted strongly toward them: roughly 90% of new commercial bowling venues worldwide are choosing string pinsetters, an industry trend rather than a single-vendor figure. On retrofit, a key practical advantage is that string pinsetters usually drop onto an existing lane approach without rebuilding the pin-deck pit, so upgrading an older centre tends to be faster and less disruptive than replacing like-for-like free-fall machines. Xushida quotes a standard lead time of 30–45 days, supports remote video guidance as standard, and can arrange on-site engineering for large projects (quoted separately). Purchase price, installation cost, and energy use are project-specific—request a formal quote for your lane count.

Which venue should choose what

• New builds, FECs, hotels, malls, and mixed-use venues: string is usually the practical default—quieter operation, simpler upkeep, and a certified path under the 2025 USBC decision.
• Venues hosting a high share of traditional/elite sanctioned league or tournament play today: confirm the certified specification and discuss timing against the August 2026 rule effective date with the federation and supplier.
• Existing centres with healthy free-fall machines: you do not have to rip out working equipment; weigh a phased string retrofit against the remaining service life of current machines.

Questions to ask your supplier

1. Is this exact pinsetter model certified under the USBC 2025 string-pin specification, and can you show the certificate and scope?
2. Which wear parts are proprietary versus compatible with AMF 8290 / Brunswick GS98 / GSX?
3. What is the standard lead time for my lane count, and what does remote vs. on-site support include?
4. What retrofit work (if any) is needed on my existing pin deck?
5. What is the warranty—Xushida provides a 12-month main-unit warranty with lifetime parts support—and the formal price for my project?

Talk to an engineer about your project

Tell the Xushida team your country, venue type, number of lanes, and target opening date, and they will prepare a 3D layout and formal quotation with project-specific specifications.

• WhatsApp: +1 909 852 9392
• Email: info@xushidabowling.com (response within 24 hours)

Sources: Beijing Xushida Technology Company Profile (2026-08-31); Xushida product specifications and USBC certification (2025); Xushida commercial terms. Claims are limited to the manufacturer’s stated specifications. Figures not published by the manufacturer (pricing, energy consumption, project cost, ROI) are intentionally omitted—contact the supplier for project-specific data.