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ES0381  rev P      01/08

1

SL-20/30/40 Lathes

STEADY REST OPTION

The steady rest platform provides for increased support of longer shaft turning and boring operations using 
various automatic hydraulic aftermarket steady rests. The steady rest mounting platform is manually posi-
tioned along the Z-axis and is locked in place by a mechanical clamp. It can be used in conjunction with the 
tailstock option.

Industry standard mounting holes to accept a variety of aftermarket steady rest grippers manufactured by 
LMC, Forkhardt, SMW Systems, Rohm, and SMW Autoblock.

NOTE:

  Some brands and/or models of steady rests may not fi t the Haas bolt pattern and 

a special adaptor plate would need to be fabricated by the customer.

S

TEADY

 R

EST

 H

EAD

 I

NSTALLATION

Install the steady rest on the platform. Do not tighten the mounting bolts as the head unit will need to be 
aligned during the part setup. This is described in the following section.

Attach the existing hydraulic hoses, from the lathe, to the steady rest head. These are just inside of the lower 
sheetmetal, above the chip tray. The fi ttings at the end of the hoses are female JIC-4. The hose to clamp 
the steady rest is attached to the top tube and the unclamp hose is attached to the lower tube. If necessary, 
secure the fl exible hoses so they do not come in contact with any chip removal system.

Position the steady rest along the Z-axis by pulling the clamp handle toward the spindle to release the clamp. 
Push the steady rest to the desired location and reengage the clamp.

Summary of Contents for SL-20

Page 1: ...tor plate would need to be fabricated by the customer STEADY REST HEAD INSTALLATION Install the steady rest on the platform Do not tighten the mounting bolts as the head unit will need to be aligned d...

Page 2: ...bolts Clamp the workpiece in the chuck and the steady rest NOTE The hydraulic pressure to the steady rest is adjusted using the pressure regulator on the left side of the lathe Place a dial indicator...

Page 3: ...s manual will describe how to replace them and list part numbers to order STEADY REST PLATFORM ALIGNMENT The Steady Rest platform may need to be realigned after a crash or if it has been removed The f...

Page 4: ...own The steady rest platform must be perpendicular to the Z axis within 001 3 If alignment is necessary loosen the 8 16 on the SL40 series mounting bolts as shown below to align the platform When the...

Page 5: ...ES0381 rev P 01 08 5 STEADY REST TRAVEL LIMITS SL 20L SL 30L A B C A B C SL 30L 14 25 362 mm 74 00 1880 mm 78 87 2003 mm SL 20L 8 50 216 mm 39 00 991 mm 52 00 1321 mm...

Page 6: ...676 mm 20 95 532 mm 33 34 847 mm 26 51 673 mm 59 43 1510 mm 26 51 673 mm 47 11 1197 mm 20 95 532 mm 59 43 1510 mm 67 75 1721 mm 47 11 1197 mm 51 75 1314 mm SL 30 SL 40 41 47 1053mm with tailstock 52...

Page 7: ...ES0381 rev P 01 08 7 SL 40 Long Bed 94 89 2410 mm 67 82 1723 mm 94 89 2410 mm 26 50 673 mm 38 02 966 mm 26 50 673 mm...

Page 8: ...35 85 mm 2 76 70 mm 4 02 102 mm 3 03 77 mm 4 3 3 1 1 0 m m 8 6 6 2 2 0 m m 4 1 3 5 1 0 5 m m 8 2 7 2 1 0 m m 11 09 282 mm Spindle Centerline 0 25 6 mm 1 30 33 mm 0 82 21 mm 4 47 114 mm 1 2 13 UNC 2B...

Page 9: ...35 85 mm 2 76 70 mm 3 35 85 mm 6 69 170 mm 15 19 386 mm 0 15 4 mm 56 Thru 4 Spindle Centerline 0 68 17 mm 2 25 57 mm 0 88 22 mm 2 75 70 mm 0 62 16 mm 2 87 73 mm 1 2 13 UNC x 1 25 DP 8 Spindle Center...

Page 10: ...ES0381 rev P 01 08 10 SL 20L SL 30 SL 30B Base Pattern 2 25 57 mm 2 75 70 mm...

Page 11: ...3 0 m m 1 0 2 5 2 6 0 m m 5 1 6 1 3 1 m m 1 0 3 2 2 6 2 m m Spindle Center 308 20 33 516 mm 0 15 4 mm Spindle Centerline 4 00 102 mm 2 94 75 mm 4 61 117 mm 1 06 27 mm 0 88 22 mm 2 75 70 mm A 5 8 11 UN...

Page 12: ...ES0381 rev P 01 08 12 SL 40 SL 40B SL 40L Base Pattern 2X 2 75 70 mm 4 00 102 mm 4 88 124 mm...

Page 13: ...ES0381 rev P 01 08 13 STEADY REST ENVELOPE DRAWINGS SL 20L F r o n t S h e e t M e t a l Spindle Center 15 13 72 348 mm 18 46 469 mm 30 F r o n t S h e e t M e t a l...

Page 14: ...ES0381 rev P 01 08 14 SL 30 SL 30L SL 30B 15 14 66 372 mm F r o n t S h e e t M e t a l Spindle Center 30 F r o n t S h e e t M e t a l 22 53 572 mm...

Page 15: ...ES0381 rev P 01 08 15 SL 40 SL 40B SL 40L 19 77 502 mm 25 52 648 mm 300 15 0 Spindle Center F r o n t S h e e t M e t a l F r o n t S h e e t M e t a l...

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