Product Specifications
Machine Tool Characteristics
1. This machine tool is manufactured using high-grade cast iron and a box‑type structural design. After appropriate annealing to relieve internal stresses, the material exhibits exceptional toughness. Combined with the box‑type structure and a highly rigid body, the machine delivers sufficient rigidity and strength, enabling it to withstand heavy cutting operations while maintaining outstanding repeatability and precision.
2. The base and the spindle housing are integrated into a monolithic box-type structure, featuring thick ribbed walls and multi-layered stiffening ribs, which effectively suppress thermal deformation and withstand both static and dynamic torsional and deformation stresses, ensuring high bed rigidity and excellent stability.
3. The column adopts a honeycomb‑type symmetrical box‑section design, with thick‑walled internal stiffeners and stress‑relief circular‑hole stiffeners, providing robust support for the sliding table during heavy cutting operations and ensuring high rigidity and precision of the machine bed.
4. High-precision, high-rigidity spindle head: This machine is equipped with a FANUC high-power spindle servo motor (rated power 18.5/22 kW).
5. The spindle bearings are selected from the SKF and NSK series, offering exceptional axial and radial load capacity to ensure reliable performance during prolonged heavy‑cutting operations, with outstanding precision, stability, low friction, excellent heat dissipation, and robust spindle support rigidity.
6. X/Z Axis: Employs FANUC AC servo motors paired with large-diameter ball screws (C3-grade precision, preloaded to eliminate thermal expansion and enhance rigidity) for direct drive, eliminating the cumulative errors associated with belt-driven systems. This ensures high repeatability and positioning accuracy, while the support bearings are high-precision angular contact ball bearings.
7. The X and Z axes are equipped with ultra-heavy-duty linear guideways featuring high rigidity and a low coefficient of friction, enabling high-speed feed rates while minimizing guideway wear and preserving machine tool accuracy over time. These linear guideways offer a low friction coefficient and excellent dynamic response, delivering superior machining precision and supporting high‑load cutting operations.
8. Lubrication System: This machine features an automatic pressure‑relief lubrication system that employs centralized oil delivery and an advanced pressure‑relief, intermittent lubrication mechanism. It provides timely and precise oil supply to each lubrication point—on a timed, metered, and pressurized basis—ensuring that every lubrication location receives the proper amount of lubricant, thereby guaranteeing reliable, long‑term operation without maintenance concerns.
9. Full‑enclosure sheet metal: In response to today’s stringent environmental protection requirements and a strong emphasis on operator safety, sheet‑metal design prioritizes aesthetic appeal, environmental sustainability, and ergonomic considerations. The fully sealed enclosure effectively prevents coolant and chips from splashing outside the machine, keeping the surrounding area clean. Additionally, both sides of the machine are equipped with coolant‑flushing systems that direct coolant onto the base, minimizing chip accumulation on the floor.
Machine Tool Technical Parameters
| Specifications/Model |
SZ750E |
|
|---|---|---|
| Maximum turning diameter |
mm |
Ø920 |
| Maximum cutting diameter |
mm |
Ø850 |
| Maximum cutting height |
mm |
800
|
| Three-jaw hydraulic chuck |
inch |
18" |
| Spindle speed |
rpm |
Low speed: 20–340, High speed: 340–1500 |
| Spindle bearing inner diameter |
mm |
Ø200 |
| Spindle nose |
A2-11 |
|
| Turret type |
Horizontal |
|
| Number of cutting tools |
pieces |
10
|
| Tool dimensions |
mm |
□32,Ø50 |
| X-axis travel |
mm |
+475, -50 |
| Z-axis travel |
mm |
815
|
| Rapid X-axis positioning |
m/min |
20
|
| Z-axis rapid traverse |
m/min |
20
|
| Spindle motor FANUC |
kw |
18.5/22 |
| X-axis servo motor FANUC |
kw |
4
|
| Z-axis servo motor FANUC |
kw |
4
|
| Hydraulic motor |
kw |
2.2
|
| Cutting oil motor |
kw |
1 kW × 3 |
| Machine tool appearance: length × width |
mm |
4350×2350 |
| Machine tool height |
mm |
4450
|
| The machine tool weighs approximately |
kilogram |
15000
|
| Total electrical capacity |
KVA |
50
|
SZ750E
Spindle motor power (continuous/30 min): 18.5/22 kW
Hydraulic chuck: 18 inches
Number of tool positions: 10
Maximum cutting diameter: 850 mm
X/Z rapid feed: 20/20 m/min
Machine tool dimensions: 4350 x 2350 x 4450 (length x width x height)
Machine tool weight: 16,000 kg
Contact Us
liutianhong@sanzhongjx.com
400-7726-318
Category:
High-speed vertical lathe