Daily Approach: "String Pinsetters vs Free-Fall: Pros and Cons"

Day #243: Aug. 30th, 2026

String Pinsetters vs. Free-Fall Pinsetters: Pros and Cons
Bowling centers are increasingly choosing between two types of pinsetting technology: traditional free-fall pinsetters and newer string pinsetters. Both systems can keep lanes operating, but they differ in mechanical design, maintenance, pin action, noise, operating costs, and competitive bowling considerations.

For casual bowlers, the difference may be barely noticeable at first. For league and tournament bowlers, however, the type of pinsetter can affect how pins react and how scores are compared.

How They Work

• Free-fall pinsetters
  • A free-fall pinsetter uses a complex network of mechanical components to clear fallen pins, lift standing pins, place them in the pin table, and reset the rack. These systems have been the standard in bowling centers for decades.
  • Free-fall machines are often associated with traditional bowling because the pins move naturally after being struck. The pinsetter itself does not remain attached to the pins during the shot.
• String pinsetters
  • A string pinsetter connects each pin to an overhead mechanism with a cord or string. After the ball reaches the pins, the system lifts and resets the pins individually.
  • Because string pinsetters use fewer large mechanical components, manufacturers promote them as simpler, more efficient, and easier to maintain. Brunswick, for example, describes its Boost ST string pinsetter as a USBC-certified and PBA-approved system designed for both open play and competitive bowling.

However, not every string pinsetter has the same specifications or approval status. Centers and tournament organizers should always verify the certification of the specific equipment being used.

Advantages of String Pinsetters

• Lower mechanical complexity
  • String systems generally have fewer moving parts than free-fall machines. This can simplify routine maintenance and reduce the number of components that can wear out or fail.
  • For a bowling center, fewer complicated mechanisms may make it easier to troubleshoot equipment problems and return a lane to service quickly. This can be especially valuable for smaller centers that do not have a full-time mechanic.
• Potentially lower operating costs
  • String pinsetters are often promoted as a lower-cost alternative because they may require less maintenance, less specialized labor, and less energy than older free-fall equipment.
  • Some industry estimates claim that string systems can substantially reduce annual parts and repair expenses compared with free-fall machines. These figures vary by manufacturer, center size, equipment age, labor rates, and usage, so operators should evaluate actual service records and total ownership costs rather than relying on a single estimate.

The potential savings can be important for centers dealing with:

• High utility costs.
• Difficulty finding qualified pinsetter technicians.
• Frequent equipment downtime.
• Aging free-fall machines.
• Limited maintenance budgets.

 

• Faster recovery from breakdowns
  • A broken lane costs a center potential game revenue and can frustrate customers. Because string pinsetters are mechanically simpler, some problems may be diagnosed and repaired more quickly than comparable free-fall failures.
  • That does not mean string machines are maintenance-free. Strings, motors, sensors, pin attachments, and control systems still require inspection and replacement. The main advantage is that the design may reduce the number of complex mechanical repairs.
• Quieter operation
  • Free-fall pinsetters contain motors, elevators, belts, gears, arms, and other moving parts that can create considerable noise. String systems may operate more quietly because they use a simpler reset process.
  • A quieter center can improve the experience for families, league bowlers, coaches, and customers who prefer a more relaxed atmosphere. It can also make it easier to hear announcements, conversations, and instructional advice.
• Useful for new entertainment centers
  • String pinsetters can be attractive to new bowling and family entertainment centers because they may fit well with compact layouts, automated operations, and multi-attraction facilities.
  • A center that combines bowling with arcade games, laser tag, food service, and event rooms may value equipment that supports high lane availability while reducing mechanical complexity.

Disadvantages of String Pinsetters

• Different pin action
  • The most important concern for experienced bowlers is that strings can influence pin movement. A string may affect how a pin falls, slides, deflects, or interacts with another pin.
  • Even when a string pinsetter meets approved specifications, the overall reaction may not feel the same as free-fall bowling. Bowlers may notice differences in corner-pin leaves, messenger-pin movement, or how pins react after contact.
  • USBC has researched averages in centers that converted to string pinsetters and published information about treating string and free-fall scoring. The organization’s equipment research highlights why averages and competitive records require careful consideration when bowlers move between the two systems.
• Adjustment may be required.
  • A bowler who is comfortable on free-fall lanes may need time to adjust on string-pin lanes. The best strategy for creating pin action may change slightly, including:
    • Entry angle.
    • Ball speed.
    • Axis rotation.
    • Breakpoint location.
    • Spare-ball selection.
    • Expectations for corner pins.
  • This does not necessarily make string bowling worse. It makes it different. Bowlers should practice on the same type of pinsetter used in an upcoming league, tournament, or event whenever possible.
• Competitive records can be complicated
  • String pinsetters are not automatically interchangeable with free-fall pinsetters for every competitive purpose. Certification can depend on the exact machine, setup, specifications, and event rules.
  • Centers hosting sanctioned leagues or tournaments should confirm:
    • Whether the pinsetter is USBC-certified.
    • Whether the equipment is approved for the intended competition.
    • Whether league averages should be tracked separately.
    • Whether tournament rules recognize scores from that equipment.
    • Whether bowlers must be notified before competition.
  • A high score on one type of pinsetter should not always be compared directly with a score from another without considering the playing conditions.
• Replacement parts and training still matter
  • Although string pinsetters may be easier to maintain, they still require trained staff and proper parts. A center may need new procedures for inspecting strings, sensors, motors, and pin attachments.
  • If employees are not trained correctly, small problems can become recurring lane issues. Operators should consider technician support, warranty coverage, parts availability, and staff training before installing any system.

Advantages of Free-Fall Pinsetters

• Traditional pin reaction
  • Free-fall pinsetters provide the pin movement most competitive bowlers know. Since the pins are not attached to strings during impact, their motion is determined primarily by the ball, pin placement, pin condition, and contact between the pins.
  • This familiar reaction is one reason many league bowlers and tournament players continue to prefer free-fall equipment.
• Established competitive history
  • Free-fall pinsetters have been used in organized bowling for many years. Centers, mechanics, coaches, and tournament officials are familiar with their operation and maintenance requirements.
  • That established history can make free-fall equipment easier to evaluate when comparing past scores, league averages, tournament results, and player performance.
• Familiarity with mechanics
  • Many experienced bowling-center mechanics have spent years working with free-fall machines. Parts, repair procedures, troubleshooting methods, and maintenance schedules may already be well understood.
  • For a center with a dependable mechanic and well-maintained equipment, free-fall pinsetters can continue to deliver reliable service.

Disadvantages of Free-Fall Pinsetters

• More mechanical parts
  • Free-fall machines can contain many interconnected parts, including belts, gears, elevators, motors, arms, switches, and pin-handling components. A problem with one part may affect the entire lane.
  • The complexity can increase maintenance demands and make some repairs expensive or time-consuming.
• Higher maintenance demands
  • Older free-fall pinsetters may require frequent adjustments and replacement of worn parts. Centers may also need specialized technicians, especially when a major component fails.
  • When a technician is unavailable, a lane may remain out of service longer. That can create delays during open bowling, league play, and tournaments.
• More noise and energy use
  • Traditional free-fall equipment can be louder and may use more energy because of its larger motors and continuous mechanical operation. The actual difference depends on the model, age, maintenance condition, and how the center operates its lanes.
  • For a large center, energy consumption and equipment noise can become important operating considerations.

Which One Is Better?
There is no universal winner. The better choice depends on the center’s goals and the type of bowling it serves.

String pinsetters may be a good fit for:

• Family entertainment centers.
• High-volume open bowling.
• New bowling facilities.
• Centers seeking simpler equipment.
• Locations with limited access to specialized mechanics.
• Venues focused on lower downtime and operating efficiency.

Free-fall pinsetters may be a good fit for:

• Tournament-focused bowling centers.
• Traditional league houses.
• Competitive bowlers who prefer familiar pin action.
• Centers with experienced maintenance staff.
• Facilities with reliable, well-maintained existing equipment.

What Bowlers Should Ask
Before joining a league or entering a tournament, bowlers may want to ask the center:

• Are the lanes equipped with string or free-fall pinsetters?
• Is the specific pinsetter approved for sanctioned competition?
• Are averages tracked separately?
• Will the equipment be the same throughout the league or event?
• How recently were the machines serviced?
• Are practice lanes equipped with the same type of pinsetter?

These questions can help bowlers understand what to expect and avoid comparing scores from substantially different equipment without context.

The Future of Pinsetting
String pinsetters are likely to become more common, particularly in new entertainment-focused centers and facilities looking for efficient, lower-complexity equipment. Free-fall pinsetters will continue to play an important role in established bowling centers and competitive venues.

For the sport, the key will be consistency and transparency. Bowlers should know what equipment they are using, centers should maintain it properly, and governing organizations should clearly communicate certification and scoring policies.

Whether a center uses strings or free-fall machines, the goal remains the same: keep the pins standing consistently, keep the lanes available, and give bowlers a fair and enjoyable experience.