linear stepper motor actuator
linear stepper motor actuator Key Features:
          
- Small profile
- Short moving part
- Built-in mechanical roller bearings
- No air gap adjustment required
- No servo tuning required
- Multiple forcers on single platen
- Lowest cost linear motion solution
- Compatible with stepper motor drives
- IntelLiCoder Linear Feedback
   
 

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Linear stepper motor actuator   with air/ball bearings

 

Linear Stepper Motor Actuator   "Plug-and-Play"

 

Closed Loop Linear Stepper Motor  Linear ServoStep

 

 

IntelLiDrives linear stepper motor actuator system is a complete linear positioning actuator has the motor, bearings and feedback device integrated into one compact package.

 

Linear stepping motors are ideal for positioning applications with light to medium payloads. They can be used at speeds up to 60 in/sec and strokes up to 144" (longer strokes can be achieved with modular platens). Linear stepping motors are capable of very precise positioning and velocity controls when used with micro-stepping drives and indexers.

 

Series BB linear stepper motor consists of two parts:

 

moving forcer assembly incorporates electromagnetic motoring modules and mechanical roller bearings. The bearings are designed to support customer payload and to maintain air gap required for motor operation. Both side and bottom bearings are magnetically preloaded against the platen and no user adjustments are required to set up and to maintain the air gap . Forcer can be supplied with D-sub connector or cable track adapter with high-flex cable to connect to drive electronics. Multiple forcers can be installed and independently operated on a single platen.

 

long stationary platen is a precision ground hardened stainless steel bar with epoxy filled slotted grooves. The platen is passive and does not contain any magnetic material. The platen length is a function of stroke. Long platens can be supplied as a single bar or in modular sections that can be interlocked with each other to form very long continuous platen. Platens manufactured in precision and standard grades with running parallelism and flatness of 10 and 5 microns.

 

 

IntelLiDrives linear stepper motor compatible with the same full step or micro-stepping electronics used with rotary stepping motors. When operating with micro-stepping drives or indexers very fine resolutions are achievable. With 256 micro-step/step drivers, the micro-step resolution will be 0.010"[0.25mm]/256= 0.00004"[1 micron].

 

For applications requiring ultra precise positioning and dynamic performance IntelLiDrives linear stepper motor can be supplied with tape-less  IntelLiCoder feedback for closed loop brushless Linear ServoStep operation.

   

PARAMETER

MODEL

                                 
   SYSTEM                 LSM BB 5 LSM BB 8 LSM BB 12
                                               
   Static force         lb 5 8 12
   Dynamic force note 1 lb 4 6 10
   Repeatability note 2 in         0.0002        
   Resolution note 3 full steps / inch         100        
       note 4 in         0.0001        
   Hysteresis         in         0.0005        
   Travel straightness note 5 in / in TIR         0.0005 / 12        
   Operating speed in / sec         60        
                                                 
                                   
   FORCER                     
                           
   Forcer type             PM hybrid    
   Number of coils                2       
   Number of phases note 6        2       
   Cyclic error uncorrected     in      0.001   
   corrected  note 7 in     0.0005   
   Current per coil    amp     1.5   
   Max case temperature    deg F     140   
   Bearing type top             ball   
    side note 8        ball   
   Air gap note 9 in    

fixed

  
  Max forcer load top    lb 10 10 20
    side    lb 10 10 15
   Forcer weight      

lb

1 1.5 2
   Forcer finish                 anodized       
                        
                                      
   PLATEN      

P2-13.5

P2-13.5

P3-13.5

             
   Standard length note 10 in 13.5, 27, 40.5, 54, 67.5, 81, 94.5,
                      108, 121.5, 135, 148.5, 162
   Platen weight   lb / in   0.4   
   Platen pitch note 11 in     0.040   
   Cumulative pitch error   in / ft     0.0005   
   Platen thermal expansion   in / in / deg F    0.00000633   
   error          
   Local mounting surface note 12    in / in          0.0004 / 4   
   flatness                              
                                        
Note 1 At 20 in/sec with 60 VDC power supply Note 7 With cyclic error correction
Note 2 Unidirectional Note 8 With 10 lb magnetic preload
Note 3 Motor resolution 0.010 in per full step Note 9 Air gap set fixed at the factory
Note 4 Dependent on micro-stepping resolution Note 10 Consult the factory for longer travel requirements
Note 5 Dependent on the mounting surface and method Note 11 Consult the factory for other pitch requirements
Note 6 Four phase models available. Consult the factory Note 12 Surface flatness required for the motor operation

 

   

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Linear actuator sizing

     
   

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