Precision Engine Lathe: Model: Clark-1640/1660/1840/1860
| Specification Model | 1640/1660 | 1840/1860 | |
|---|---|---|---|
| Maximum | 16"(410mm) | 18"(458mm) | |
| Maximum swing over slide | 9-7/16"(240mm) | 11"(288mm) | |
| Maximum swing within gap | 23-7/16"(595mm) | 25-3/16"(640mm) | |
| Length of gap | 6-1/8"(155mm) | 6-1/8"(155mm) | |
| Maximum length of workpiece | 40" 55"(1000,1400mm) | 40" 55"(1000,1400mm) | |
| center height | 43"(1085mm) | 44"(1110mm) | |
| Headstock: | |||
| Spindle Nose | ISO702 No.6 Camlock | ISO702 No.8 Camlock | |
| Spindle Bore & Taper | 2-1/16"(52mm), MT6 | 3-1/8"(77mm), 1:20 | |
| Spindle Speeds | 32-2000 rpm 12steps | 32-1600 rpm 12steps | |
| Feeds and Threads | |||
| Max. travel of compound rest | 4-3/4"(120mm) | 4-3/4"(120mm) | |
| Max. travel of cross slide | 9"(230mm) | 9"(230mm) | |
| Leadscrew pitch | 4 T.P.L | 4 T.P.L | |
| Max. section of tool | 1"x1"(25mmx25mm) | 1"x1"(25mmx25mm) | |
| Longutudinal feeds range | 0.0012-0.0352"/rev(0.032-0.898mm/rev) | 0.0012-0.0352"/rev(0.032-0.898mm/rev) | |
| Cross feeds range | 0.0006"-0.0126"/rev(0.016-0.449mm/rev) | 0.0006"-0.0126"/rev(0.016-0.449mm/rev) | |
| Metric threads range | 53 kinds, 0.4-14mm | 53 kinds, 0.4-14mm | |
| Inch threads range | 40 kinds, 2-56 T.P.L | 40 kinds, 2-56 T.P.L | |
| Diameter pitches range | 32 kinds, 4-32 D.P | 32 kinds, 4-32 D.P | |
| Module pitches range | 44 kinds, 0.4-7 M.P | 44 kinds, 0.4-7 M.P. | |
| Tailstock | |||
| Diameter of tailstock sleeve | 2-1/8"(55mm) | 2-1/8"(55mm) | |
| Travel of tailstock sleeve | 4-3/4"(120mm) | 4-3/4"(120mm) | |
| Morse taper of tailstock sleeve | No. 4 Morse | No.4 Morse | |
| Cross adjustment | 1/2"(13mm) | 1/2"(13mm) | |
| Motor | |||
| Main motor | 7.5 H.P./3ph/60Hz | 7.5 H.P./3ph/60Hz | |
| Coolant pump | 1/8 H.P. | 1/8 H.P. | |
| Dimension & Weight | 40"(1000mm) | 60"(1500mm) | |
| Overall dimension(LxWxH) | 89"x39.2"x48.4" | 110"x39.2"x48.4" | |
| Packing size | 93"x46"x64" | 113"x46"64" | |
| Net weight/gross weight | 3740lbs/4290lbs | 4290lbs/4620 | |
| Standard Accessories: | Special Accessories | Special Accessories | |
| 3-jaw chuck, driving plate, face plate, | 4-jaw chuck, digital read out system, collets closer | 4-jaw chuck | |
| 4-way tool post, steady rest, follow rest, | Taper attachment. | Taper attachment. | |
| splash guard, thread chasing dial, coolant | Quick change tool post. | Quick change tool post. | |
| system, foot brake, work light | |||
| tools and operation manual. |