TG4 is a steadfast technology performing high accuracy grinding with stable high quality, A machine structured has designed for supporting high accuracy and high productivity with adoption of a DD motor for the wheelhead swivel section combination with the original of JTEKT STAT BEARING.
| SPECIFICATION |
|---|
| ITEMS | UNIT | TG4 - 32 | TG4 - 63 |
| Distance between centers | mm | 320 | 320 |
| Swing on table | Ø320 | Ø320 | |
| Grinding diameter | |||
| O.D. | mm | Ø0 ~ Ø220 | Ø0 ~ Ø220 |
| I.D. | mm | Ø10 ~ Ø120 | Ø10 ~ Ø120 |
| O.D. wheel | |||
| Bearing | TOYODA STAT BEARING | TOYODA STAT BEARING | |
| Normal wheel O.D. x width x I.D. | mm | Straight: Ø405 x 50 [75] x Ø127 Angular: Ø405 x 50 [75] x Ø127 | Straight: Ø405 x 50 [75] x Ø127 Angular: Ø405 x 50 [75] x Ø127 |
| Normal wheel Surface speed | m/s | 30 [ 45 / 60 / 80 ] | 30 [ 45 / 60 / 80 ] |
| CBN wheel O.D. x width x I.D. | mm | Straight: Ø350 x 30 x Ø127 [Ø203.2]*² Angular: no setting | Straight: Ø350 x 30 x Ø127 [Ø203.2]*² Angular: no setting |
| CBN wheel Surface speed | m/s | 30 [ 45 / 60 / 80 ] | 30 [ 45 / 60 / 80 ] |
| Wheelhead infeed | |||
| Rapid feedrate | m/min | Ø20 | Ø20 |
| Smallest input increment | mm | Ø0.0001 | Ø0.0001 |
| Wheelhead swiveling unit | |||
| Swivel angle | ° | 0 ~ 210 | 0 ~ 210 |
| Swivel unit | ° | 0.00001 | 0.00001 |
| Swiveling method | Auto (DD motor) | Auto (DD motor) | |
| Swivel positioning method | NC | NC | |
| Table traverse | |||
| Rapid feedrate | m/min | 20 | 15 |
| Smallest input increment | mm | 0.0001 | 0.0001 |
| Workhead | |||
| Type | Workhead with live center | Workhead with live center | |
| Center | MT No.4 [ Special center ] *³ | MT No.4 [ Special center ] *³ | |
| Rotation speed | min¯¹ | 10 ~ 1,000 | 10 ~ 1,000 |
| Tailstock | |||
| Type | Hydraulic type | Hydraulic type | |
| Center | Special center [ MT No.4 ] *³ | Special center [ MT No.4 ] *³ |
Specification may be limited depending on customer tooling.
*1: Options
*2: The I.D. of CBN wheel differs depending on surface speed. I.D. Ø127 mm at 30 m/s and 45 m/s surface speed / I.D. Ø203.2 mm at surface speed 60 m/s, 80 m/s
*3: Type differs depending on the workhead and tailstock used
Combination grider achieving high accuracy and high speed grinding through process integration
Steadfast technology performing high accuracy grinding
• Stable high quality grinding
• A machine structure supporting high accuracy and high productivity
• Development technology supporting high accuracy
• JTEKT STAT BEARING
High Productivity
• Improve productivity with a ideal wheel mounting
• Improve productivity with a dual-center drive
Abundant options
• CNB wheel specifications are prepare to achieve high productivity
• C-Axis workhead
• Touch probe for wheel diameter measurement ( Automatic end face locating unit )
• Manually center distance adjustment hydraulic type tailstock
• Automatic between-center adjusting type dual-side drive workhead
• Electromagnetic chuck
