Pistol grip nutrunners in T-form

T Series — Cleco Pistol Grip Torque Wrenches in T-Form

The Cleco T Series (models 19TCA, 19TTA, 19TTS) offers compact, powerful pistol grip torque wrenches specifically designed for industrial fastening processes. The T-form combines ergonomic handling with high precision in torque build-up. Differences in start type and direct drive allow for adaptation to various manufacturing processes: the push-to-start (19TCA) for manual workstations with direct operator contact, the lever-start (19TTA) for combination with positioners or fixtures, and the direct drive (19TTS) for applications requiring a direct connection to tool holders. These variants cover fastening tasks from assembly lines to rework stations.

Design and Materials

The housing and internal components of the T Series are designed for durability and industrial use. The housing typically consists of lightweight die-cast aluminum with a corrosion-resistant coating to reduce weight while providing mechanical protection. Core components such as the planetary gear and shaft are made of hardened steel to ensure wear resistance at high cycle rates. Sealing elements use nitrile or fluororubber (NBR/FKM) depending on media and temperature requirements; optional special material combinations for oil, lubricant, or solvent resistance are available. For applications with increased hygiene requirements, surfaces with a smooth coating are available to reduce deposits and simplify cleaning.

Drive, Connections, and Pneumatic Technology

The T Series is pneumatically driven and requires a stable compressed air connection. Standard connections are 1/4" NPT or BSPP; adapters or quick couplings according to industry standards are available upon request. For optimal operation, air preparation units (filter-regulator-lubricator) are recommended to remove moisture and dirt and ensure lubrication of internal components. Standard pressure ranges are typically 4–6 bar; the wrenches are designed to deliver optimal torque curves at the specified pressure. Stable air pressure and consistent air quality ensure reproducible fastening cycles and extend the life of seals and bearings.

Torque, Control, and Adjustability

The T Series models feature finely adjustable torque ranges that can be set via mechanical adjustment rings or internal adjustment screws. The adjustability allows for both soft run-down and precise final torque monitoring. In combination with external control units, the switching frequency can be logged via monitoring modules and integrated into the production database. For applications with defined quality requirements, the wrenches can be integrated into fastening controllers to record tightening torques, cycles per minute, and run times. Direct feedback for process control reduces rework and increases first-pass quality.

Seals, Lubrication, and Maintenance

Cleco has placed particular emphasis on seal design and lubrication strategy for the T Series. The combination of O-ring seals and dynamic shaft seals minimizes air ingress of dirt particles and keeps internal lubricants in place. Standard maintenance includes regular relubrication via the prescribed AIR LUBRICATION (in combination with an inline lubricator) and the replacement of wear parts such as piston rings, bearings, and seals at defined intervals. Documented maintenance protocols extend service life and ensure constant performance parameters. Spare parts kits and maintenance plans are available to keep downtime predictable and short.

Application Areas and Process Integration

The T Series is suitable for precision assembly, series production, and maintenance in industries with high volumes and tight tolerances. Typical applications include gearbox assembly, mechanical engineering, electrical assembly, and subassembly manufacturing in the automotive and supplier industries. Its compact pistol grip form allows operation in confined workspaces and on multi-layered assemblies. By choosing between push-to-start, lever-start, and direct drive, the tools can be used in manual workstations, automated fastening cycles, or as tool integration in stations with holding devices.

Practical Examples

In gearbox manufacturing, a 19TTA (lever-start) is used in an assembly fixture to achieve repeatability in the run-down of housing screws. The fixture only triggers the lever-start when the assembly is correctly positioned; the fastening result is logged via a connected controller. In electronics manufacturing, an operator uses a 19TCA (push-to-start) for the final locking of covers; the ergonomic pistol grip form reduces fatigue during high volumes, and the push-to-start allows for sensitive engagement with delicate components. For repair shops with individual tool holders, the 19TTS (direct drive) is ideal: the tool is inserted into a rigidly positioned holder and connected to a torque-monitoring control unit, enabling both repeatability and quick tool changes. In a case study for the assembly of aerospace components, the T Series is operated in combination with an inline-mounted filter-regulator-lubricator. The workshop used nitrile-resistant seals to work with lubricants that remain stable at low temperatures. Through a documented maintenance cycle strategy and integration into the manufacturing execution system, the number of reworks was measurably reduced within a quarter. Further application examples and detailed technical information can be found on our technology page: https://maku-industrie.de/technik and under specific project results: https://maku-industrie.de/anwendungsbeispiele.

Safety and Quality Requirements

When operating the T Series, standardized safety measures must be observed: secured clamping areas, protective devices against unintentional starting, and clearly defined working distances. The tools comply with common industry standards that provide for documented tests for torque, repeatability, and air consumption. For applications requiring traceability, integration into fastening controllers must be carried out to link batch and serial numbers with fastening data. Cleco certifications and test protocols facilitate integration into quality-intensive production processes.

Selection Criteria — concise and goal-oriented

* Choose 19TCA for manual, tactilely sensitive workstations; 19TTA for stationary fixtures with lever actuation; 19TTS for fixed tool holders or direct drive.

Scope of Delivery, Accessories, and Spare Parts

Typical scope of delivery includes the basic model, ready-to-use compressed air connections, and adjustment instructions for torque ranges. Accessories include quick couplings, extensions, various bit holders, and maintenance kits. Spare parts such as sealing rings, pistons, and bearings are available at short notice to minimize production interruptions. For longer integration projects, coordination with our technicians is recommended, see https://maku-industrie.de/technik.

FAQs

1. What is the standard connection for the T Series and how do I ensure correct air preparation?

Standard connections are typically 1/4" NPT or BSPP; use a filter-regulator-lubricator with fine filtration (5 µm or better) and a regulated pressure range of 4–6 bar. Regular checking for condensate in the filter and adherence to recommended lubrication intervals are required.

2. How do I choose between 19TCA, 19TTA, and 19TTS?

Choose 19TCA for manual workstations with push-to-start control, 19TTA for stationary workpiece feeding with lever actuation, and 19TTS when a direct drive for rigid tool holders or for automated systems is required.

3. Which maintenance intervals and spare parts are critical for service life?

Critical maintenance measures include monthly relubrication via the inline lubricator, quarterly inspection of seals and piston rings, and semi-annual replacement of wear bearings depending on operating hours. Keep a spare parts kit with seals, piston rings, and bearings on hand to minimize reaction times in case of malfunctions.