"Over the years, Tennis Machines, Inc. has serviced hundreds of machines for USRSA members . . . and we have not heard a single complaint."

Stringer's Assistant Magazine

Jim Henry probably knows as much about the inner workings of a stringing machine as anyone in the business. He’s a man with intimate knowledge of what makes a stringing machine tick . . . or not tick. For over 29 years, Tennis Machines, Inc. has serviced most major machines such as Prince (authorized service center), Ektelon, Babolat, Alpha, Gamma, etc. With such extensive experience in manufacturing and servicing, Jim is a walking service manual on more than a dozen machines. So if your machine needs repair, don’t hesitate to call him. But Jim gives some good advice to avoid reaching that point: "It’s amazing how many problems could be avoided if people would only read the manual that comes with their machine. Simple maintenance will prolong the life of your machine for years."

Jim can do more for you than just simple repairs. He’ll do a complete overhaul or upgrade on your existing machine. He can also take your used machine as a trade-in on a new one.

"Satisfied customers are our best advertisement. Our expert knowledge combined with a sound price structure, results in referrals from all over the country. Thank you for your business and thanks for passing this information along to others who may be interested."

When it comes to your racquet stringing machines or tennis ball throwing machines, we are the service center for you because:

• We sell and service Prince, Ektelon, Babolat, Alpha, Gamma, and Winn tennis racquet stringing machines. We service everything from clamps and compressors to tension heads.
• We are the exclusive repair center for Prince air driven ball machines, parts and service.
• We are experts in repairing all the major brands of stringing machines.
• We are service oriented, frequently guiding owners through simple repairs or offering tips on preventive maintenance.
• We are centrally located offering convenient, time saving servicing.
• We are competitively priced.

When you discover a problem – clamps slipping, machine out of calibration, whatever, follow the steps below:

Step 1 – Call Tennis Machines, Inc. at (636) 394-8811 and Jim or his technical people will try to diagnose the problem over the phone and tell you how to extract the part they need to see. They’ll also give you an approximate repair cost. 

Step 2 - You ship the part to Tennis Machines. 

Step 3 - Tennis Machines will evaluate the problem, call you with their advice, and an exact repair cost. 

Step 4 - You authorize Tennis Machines to do the repair and pay (with credit card, check, or money order). 

Step 5 - Tennis Machines repairs your machine and ships it back to you. 

You’ll likely be back in business within one week from when you shipped the part. Our service center is large enough to help you with all your service and repair needs. We have a good turnaround rate from 1 to 3 days on most projects, depending on parts availability and how fast you want your machine done.

Tennis Machines, Inc. proudly carries the following manufacturer's product lines (Please click the name for more information.): Prince, Ektelon, Babolat, Alpha. and Gamma.

We also sell Tennis Tutor, Lobster, PLAYMATE , and Wilson ball machines.

Tennis Machines, Inc. has been appointed the only authorized repair center for older Prince ball machines. They have a full range of parts for the Little Prince, Little Prince VSP, Professional II and Deluxe Professional II and PBM ball machines.  We now have become the distributor for parts on the PBM-100, PBM-200 and PBM-400 machines.

Please click here to view our Stringing Machines Product Information Catalog and On-Line Shopping.

Please click here to access our Ball Throwing Machines Product Catalog and On-Line Shopping.

Tennis Machines also carries Lobster ball machine accessories, such as spin adapters, remote controls, and storage covers, Wilson ball machine accessories, and Tennis Tutor ball machine accessories.   Please click here to view the Ball Machine Accessories Product Catalog and On-Line Shopping

We pay top trade-in value for your used stringing machine or ball machine toward the purchase price of any new Prince, Ektelon, or Babolat stringing machine or ball machine.  We sell used stringing and ball machines, overhauled and guaranteed.

If you wish information on in-stock machines or if you don't see the machine you want below, contact us, either by phone (USA)1-800-572-1055 or (636) 394-8811, fax (636) 394-3271,  e-mail:  jhenry@tennismachines.com or letter, for our inventory changes weekly.  We also have more machines in stock than are on the list.

Machines are graded as far as condition and carry a warranty from us.  All machines have been thoroughly checked for their accuracy, reconditioned if necessary, and upgraded, if needed, to string all oversize and wide body racquets.  

In today’s stringing machine market, many people are confused on what to buy, what a machine will do, and how it operates. We hope this fact sheet will help you understand the process a little better.

Will your machines string any type of racquet?

All machines we sell will string all the various shapes and sizes, i.e., wide body, oversize, super, mid, tennis, squash, badminton, and racquetball.

Why use Tennis Machines, Inc. for repairs?

The manufacturer cannot promise repair within a certain time period. Tennis Machines, however, will likely have you back in business within one week after they receive your shipment.

Do you sell used equipment?

Yes, but our inventory changes daily so you will have to call us ( [USA] 1-800-572-1055 or (636) 394-8811) to find out what is in stock.

Do you do warranty repairs?

If you purchased your machine from Tennis Machines, Inc. we will do warranty repairs. If not, check the manufacturer first for warranty repairs. If your machine is out of warranty, give us a call.

Who pays the shipping cost for repairs?

The customer pays for shipping both ways.

What is the most common problem facing stringers?

Jim says it's string clamp slippage and accurate string tensioning. The company overhauls and replaces more clamps and tension assemblies than any other part. The average turn around time is 1-2 days on most repairs.

What are some of the terms you use?

Constant pull:  the fact that all electric type machines, and all drop weight machines, while pulling to the preset tension, are pulling stronger (and a longer time) than crank type machines, or this could be also called "pre-stretch," and an accepted fact is that constant pull machines will string 3# - 4# tighter than crank type. 

Crank type tension:  the pulling or turning of a handle to the pre-set tension, machine then locks and holds. 

Drop weight tension:   letting the weight bar rest at a horizontal level, at a preset tension, for either portable or professional. 

Fixed clamps:  string clamps move on a glide bar to the string holding position and when the handle is locked, they hold stationary or "fixed" at that position.

Portables: also called table top models, weight less than 50# and are used by setting them on a table, counter, or desk. 

Professional models:   column-type stand-up operation machines. 
Tension range: 10# to 90#, varies.    column-type stand-up operation machines. 
Tension range: 10# to 90#, varies. 

2 point or 2 post clamping: where both throat and head are clamped down tight against the machine risers or stocks. 

4 point: where the racquet is held in position by 2 clamp down posts at throat and head and has an additional 2 point frame retainer on the outside of the frame for added frame strength and stability. Usually these 2 frame retainers are located at approximately 3:00 and 9:00. 

6 point: where the racquet is held by either 2 clamp down posts or 2 pressure type posts at the throat and head and 4 additional outside frame retainers. At approximately 2:00, 4:00, 8:00, and 10:00 positions. 

6 points "V" or angle retainers: racquet is held stationary by a 4 point suspension system or 4 point angle pressure system in addition to the 2 throat and head posts. 

360 degrees swivel clamps: movable to any clamping position in a 360 degree radius, then locking to the table and to the string and become "fixed" in position.

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