YAMA SEIKI

Horizontal Machining Center

Aiming for multi-process high precision machining, we created the AH-400 series which is based on our advanced technologies. A combination of high rigidity symmetric structure, 12,000 rpm built-in spindle, index table, and 48 m/min. 3-axis rapid gives you high speed, high accuracy and heavy cutting capabilities into one single machine. High precision components such as automobile crank cases and engine blocks can be easily done while meeting stringent quality requirements.

The heavily ribbed, thermally balanced bed and columns uses FC 300 “ Meehanite ” casting structures and Finite Element Methods ( FEM ) to ensure overall machine rigidity and loading balance.
The double-decked bed with optimal reinforced ribbings enables the cutting force to be evenly distributed to the bottom while meeting high accuracy requirements under long term machining conditions.
Central chip removal design enables the heat to escape directly into the air, not trapped inside the machine; this tremendously improves the machine’s overall accuracy by lowering thermal expansion effects to a minimum.

High Precision Built-in Spindle ah_400_built-in-spindle

Standard CAT40 12,000 rpm built-in spindle provides 167 N-m high torque output at 600 rpm.

The main / sub-design allows larger coolant tank capacity while preventing coolant temperature from influencing machining qualities.
The THK SNS roller linear guide ways on 3 axes provides dynamic load rating superior to peer models and high rigidity form precision horizontal machining applications.


High Rigidity Working Table Automatic Pallet Changer ( APC ) ATC System

Working table is adopted with 4-point supporting design with worm gear driven B-axis. The B-axis resolution is up to ±5 sec ( with HEIDENHAIN encoder ) which highly increases positioning accuracy.

Pallet change time : 10 seconds.

Standard 60-tool disk type ATC. Tool change time : 2 seconds ( T-T ) ; 5 seconds ( C-C )


AH-800 series Large-sized Horizontal Machining Center
Models AH-400 AH-800
Max. X / Y / Z axes travel 19.7" / 22.0" / 23.6" 51.2" / 40.2" / 41.3"
Dist. from spindle nose to table 3.9" ~ 27.6" 5.9" ~ 47.2"
Dist. from spindle center to table 2.0" ~ 24.0" 3.94" ~ 44.1"
Max. Spindle speed 12,000 rpm 6,000 rpm
Spindle motor output 30 / 25 HP 50 / 40 HP
Spindle taper CAT40 CAT50
Table size / Number 15.7" x 15.7" / 2 31.5" x 31.5" / 2
Max. table load 882 lb 4,410 lb
Rotating speed of B-axis 11.1 rpm 10 rpm
X / Y / Z axes rapids 1,890 IPM 1,180 IPM
Max. tool diameter / Adjacent 3.1" / 5.9" 5.0" / 9.8"
Tool magazine capacity Disk Type 60 Station Chain type 60 Station
Dimensions ( L × W × H ) 189" x 82.7" x 96.5" 27.6" x 164.2" x 145.7"
Machine weight 25,350 lb 55,120 lb

Specifications are subject to change without notice.