Bosch Rexroth Tightening Technology
Tightening Systems CS351 and System 350
Tightening systems for fixtured spindles in fixtures and multi-spindle stations: the modular Rexroth System 350 with power modules, control and supply modules, EC motors, planetary gearboxes, transducers and output drives, plus the CS351 compact system, which combines controller and power module in one housing. Transducers go up to 530 Nm. Hand-guided tools are in the neighbouring category ErgoSpin and NEXO Handheld Nutrunners.
- 150 items
- 1 manufacturer
- Net prices plus VAT
Buying guide
How to choose Tightening Systems CS351 and System 350
What matters when choosing: properties, comparison and typical applications.
Selection criteria
| Criterion | Options | Note |
|---|---|---|
| System | CS351 or System 350 | CS351 for one tool, System 350 for several spindles with one power module each |
| Power module | LTS350D, LTE350D | Each drives one spindle with EC motor, emergency stop to PL d |
| Size | Size 2 to 5 | Motor, gearbox, transducer and output of one spindle are combined within the same size, size 2 outputs work from 1.2 Nm, size 5 up to 500 Nm |
| Output drive | Straight, offset, feed output | The offset output places the tightening axis beside the motor axis, the feed output adds a stroke, 160 mm on the 2S2M8 |
| Tool interface | Square drive 1/4 to 3/4 in, with centring pin, quick-change 1/4 and 7/16 in | Choose by socket or bit and joint |
| Fieldbus | PROFIBUS DP, DeviceNet, EtherNet/IP, PROFINET IO, Modbus TCP, EtherCAT | IM interface modules connect System 350 to the station controller |
Applications
Multi-spindle stations Several fixtured spindles tighten in parallel, each with its own power module and transducer.
Single stations CS351 runs one fixtured spindle in a fixture without a separate control cabinet.
Robot tightening Fixtured spindles on a robot, connected with robot-grade cables from Cables and Accessories.
Line integration Control signals and results travel over the station fieldbus to the higher-level controller.
Joints with stroke Feed outputs move the spindle to the joint with their own stroke.
FAQ
- What is the difference between CS351 and System 350?
- CS351 is a compact system with controller and power module in one housing for one tool. System 350 is modular: power modules, control unit and supply module sit in a module rack or system box and drive several spindles.
- What does a fixtured spindle consist of?
- An EC motor, a planetary gearbox, a transducer for torque and angle, and an output drive. The modules are combined within one size from 2 to 5.
- How is the system connected to the station controller?
- Through IM interface modules for PROFIBUS DP, DeviceNet, EtherNet/IP, PROFINET IO, Modbus TCP or EtherCAT.
- Which cables connect spindle and power module?
- Connection cables with E in the code, straight or angled and in robot versions. They are under Cables and Accessories.