HA-1600L2M - Flat-bed Turning Center

Max. swing diameter : Ø 55.11" / 62.99" / 78.74"

Max. turning diameter : Ø 43.29" / 51.18" / 66.92"

Max. turning length : 78.74" / 118.11" / 157.48" / 196.85"

Chuck size : Ø 24"

Spindle nose : A2-15 / A2-20 / A2-28

Spindle motor : 37 / 45 kW ( 50 / 60 HP )

( cont. / 30 min. )

Max. X-axis travel : 23.42" / 27.36" / 35.23"

Max. Z-axis travel : 84.64" / 124.01" / 163.38" / 202.75"

Max. X-axis rapids : 393 IPM

Max. Z-axis rapids : 314 IPM

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Flat-bed Turning Center

Together with the latest technology and high quality components, the YAMA SEIKI Flat-bed CNC Turning Center, HA series, utilizes high rigidity four box way bed with 3-step gear spindle and servo indexing turret, to provide heavy-duty cutting capability for super large size workpiece applications. It is suitable for oil and energy industry, aerospace and shipbuilding industry, and metallurgy industry. The optional four-way toolpost, boring tooling, and high rigidity steady rest equipments provide a more efficient turning performance for large workpiece applications. Furthermore, the live tooling center and C-axis is also available which allows the machine to perform more complicated tasks such as turning, milling, and drilling to fulfill your needs for today and tomorrow.

One-piece 4 box way and flat bed casting provides a large platform with a heavy-duty structure, suitable for super large size workpiece applications.

3-step gear spindle provides great torque output under low speed, to fulfill heavy cutting needs.

Key components such as the X-axis saddle, turret and tailstock are designed with optimized configuration, to greatly increase structural rigidity and ensure both heavy-duty cutting and precision turning capabilities.

Z-axis twin chip conveyor system with separated large coolant tank design provides high efficient chip disposal and stable turning accuracy.

Heavy-duty Construction

The flat-bed is designed with a low center of gravity, which allows the workpiece weight and turning pressure to be evenly distributed throughout the flat-bed. This can greatly increase machine's overall structure and heavy-duty cutting capability.

Built to endure years and years of rigorous high production turning, the heavily ribbed, one-piece thermally balanced bed and casting components are of FC35-Meehanite casting ( industry standard is FC25~30 ). FC35 grade cast iron is capable of withstanding much greater stress without deforming and provides maximum vibration damping, which result in a machine that will outlast and outperform the competition.

By using Finite Element Methods ( FEM ), optimal reinforce ribbings are directly cast into the one-piece bed structure. Mechanical rigidity has been increased by more than compared to conventional designs.

Contact surfaces of all slides, headstock, turret, tailstock, and ball screw bearing housings with the machine bed are hand scraped to provide maximum assembly precision, structural rigidity, and load distribution.

C3 class hardened and precision ground ball screws ensure the highest accuracy and durability possible. Plus, pretension on all axes minimizes thermal distortion.

The Z-axis ball screw of the HA-L4 series and all other super-long models are equipped with supportive mechanism. This can reduce weight deformation of the super long ball screw and ensure stability for the axial feed and turning accuracy.

The one-piece casting components of the box way, bed, and saddle are designed with large span to reach maximum strength and accuracy.

The X-axis saddle and tailstock travel are designed separately, which allows the tailstock to support the workpiece without crossing the saddle. This prevents the tailstock from overhanging which can influence the rigidity.

The tailstock is equipped with Ø 200 mm ( Ø 7.87" ) rotary tailstock spindle, combining the MT#6 dead center quill and sufficient thrust power, to provide stable and accurate support for the workpiece.

The tailstock spindle control panel is directly integrated in the tailstock base, which allows the operator to easily control the tailstock positioning.

X-axis carriage locks onto the tailstock base manually and moves it to the desired position with precision accuracy.

The tailstock is designed with an auxiliary retention which gives a firm support to prevent the tailstock from sliding backwards when working on heavy workpieces.

High performance twin chip conveying system allows the chip to be quickly disposed on both sides of the Z-axis travel through the chip conveyor or screw type chip conveyor. This ensures the working area to maintain its temperature while increasing turning stability and accuracy.

700 L ( L5 series ) super large coolant tank allows optimal air circulation for faster heat dispersion and coolant temperature, which will help extend coolant life.

The control panel is integrated onto the splash guard. The operator can easily move it to the desired position without safety problems.

The splash guard and saddle can be synchronized to move together manually during the working progress, which ensures safety for the operator.

Ultimate Turning Power

The one-piece casting headstock has a net weight over 4,000 kg, which gives outstanding rigidity and also provides an ideal balance for super heavy workpieces.

The spindle is support by high rigidity bearings for maximum level of support and precision. Bearing configuration is designed for super heavy-duty cutting with ultra-smooth performance and long term durability with a higher level of accuracy.

The 3-speed super heavy-duty gear head incorporates advance mechanical designs. Mated with a 45 kW ( 30 min. ) motor to provide tremendous amount of low-end torque to handle heavy material removal on large diameter parts. It provides 8,320 Nm torque under 52 rpm to easily overcome any working applications.

The spindle uses a high performance lubrication system to efficiently and evenly lubricate the spindle bearings. Also, with a special maze protection design, it can prevent the gear box from contamination thus extending the life of the bearings.

Advanced Turret Technology

Ø 320 mm ( Ø 12.5" ) diameter 2-piece CURVIC couplings accurately position the turret disk ( ± 2 sec. of arc ) and 10,000 kg ( 26,400 lb ) of clamping force ensures abundant turret rigidity for all cutting conditions.

The 12-station heavy-duty servo indexing turret achieves 0.3 second indexing times for adjacent stations and 0.8 second times for stations at the opposite end of the disk turret.

The available 4-way toolpost can fulfill the needs for super heavy cutting or deep boring needs.

Live Tooling Turret

Live tooling and C-axis control capabilities on the HA series allows the machine to perform multiple tasks on a workpiece, such as turning, milling, drilling and tapping. It eliminates manpower and cycle time, while reducing accuracy lost, which will occur if the part is moved from machine to machine.

The 12-station YAMA SEIKI live tooling turret offers 12 stations available for live tooling, live tools rotate in working position only to reduce power loss and heat.

YAMA SEIKI live tooling turret utilizes advance servo indexing technology to achieve 0.3 second indexing times for adjacent stations and 0.8 second for stations at the opposite end of the disk.

Heavy-duty Steady Rest

The available heavy-duty steady rest can prevent the long workpieces from deflection during high speed rotation while ensuring precise concentricity of the workpiece.

The structure of the steady rest is designed based on the actual working requirement. When the workpiece diameter is not more than Ø 600 mm ( Ø 23.62" ), the saddle and steady rest will not inter fere each other during the progress. Thus the operator does not need to stop the machine to remove the steady rest, which greatly increases working efficiency.

( Hydraulic ) Ø 4.9" ~ 18.1" *1                 ( Manual ) Ø 11.8" ~ 23.6" *1                  ( Manual ) Ø 19.6" ~ 31.4"                      ( Manual ) Ø 31.4" ~ 39.3"

*1 The steady rest does not need to be removed during the working progress.

Ultimate C-axis Spindle

The Cf-axis and disk brake system available on the HA series provide the most rigid and powerful type of C-axis on the market today. In Cf-axis mode, a servo motor is engaged and drives the rotation of the spindle; engagement time is approximately 1 second.

Working with the live tooling turret, the Cf-axis and disk brake system enables the machine to perform multiple tasks, such as drilling, tapping, and milling operations, including cylindrical and polar coordinate interpolations, resembling a 4th-axis rotary table on a machining center.

With the FANUC servo motor generating an ultra high resolution of 1,000,000 pulses per spindle rotation and 1,500 Nm of spindle torque ( Con. ), machined surface finishes are much superior than Cs-axis( driven by spindle motor ) equipped machines. Plus, dynamicaccuracy is within ± 0.02° even under heavy cutting loads.