Since Land & Sea actually manufactures our dyno equipment on-site – we have the machinery, the personnel, and all the experience to get your custom manufacturing or rebuilding job done correctly.

      “Fast turnaround times!”

OEM quality rebuilding brings your used dynamometer back to life. We offer third-party absorber, roller, and electronic controller repairs, including replacement parts manufacturing. Land & Sea can convert many other manufacturer’s older or discontinued (single axle) chassis dynamometers over to true AWD, with full electronic axle synchronization, at a fraction of the cost of a new installation.

CNC machining and fabrication provides you with a dynamometer manufacturer’s factory quality – even for your custom one-off projects. Our in-house facilities include computerized 2-D and 3-D CAD/CAM/FEA design, three or four-axis computerized conventional and surface milling, full CNC turning, “traction-groove” machining, and dynamic spin balancing of large rolls (up to 65" diameter x 12' long and 4,000+ pounds each), high-definition plasma-stream cutting, TIG and MIG welding, surface-mount electronic repair, etc. Send your own prints or photos for a quotation.

Large roll repairs need not create large problems for you. However, most machine shops are unable to handle turning and dynamic balancing the high-inertia and huge-diameter rollers used in typical chassis dynamometers. Fewer still have any experience at it. No wonder rebuilders turn to us. We manufacture a full range of dynamometer rolls on a daily basis… it’s what we do. Not only can we refinish the running surface of your worn rolls, they will probably work better than they did when they were new – read further to find out why.

“Traction-Groove” machining of new or worn roll surfaces drastically improves power transfer (while reducing tire-damaging heat buildup). These special deep-machined grooves are much more effective than short-lived friction coatings or cheap cosmetic (diamond shaped) cut or press knurling. Peak torque limits will often be more than doubled via this reconditioning. Besides refinishing the running-surface area of your rolls, we can also weld and then grind refinish most worn or bent axle shafts to a true running condition. Reconditioning will often save thousands of dollars (versus a replacement part) even on just a single roll or axle repair. Call for technical advice and quotations on our “Traction-Groove” machining service.

Dynamic spin balancing of large-diameter rolls, crankshafts, propellers, flywheels, impellers, and shafts reduces the damaging vibration loads. Rebalancing of rolls and rotors (after remachining) is critical for safe, vibration-free performance – we always recommend it. Installing out-of-balance components will guarantee premature bearing failure.

Add electronics and controls to your old analog emissions dynamometer or speedometer calibrator and you can perform road-load simulations, for AFR testing, on it. Even many simplistic inertia-only type dynos can be upgraded into fully programmable, and again useful, engineering tools by the addition of one of our DYNOmite Data Acquisition Dynamometer Conversion packages. After the installation, you will be able to perform controlled acceleration sweeps and long steady-state tests. Systems typically include: an appropriate capacity eddy-current absorption unit, electronic load control with power supply, full- bridge (temperature-compensated) torque transducer (normally an S-beam load cell), 28-channel DYNOmite-Pro DAQ computer, magnetic absorber-RPM pickup, temperature thermistor and a 28- channel data harness. That, plus a switch over to our DYNO-MAX™ software, is all it takes to bring your extinct “dynosaur” right into the 21^st century!