TEFU rocker arm drilling machine Z3050X16 is currently the only factory in China that has perfectly inherited the equipment of Shenyang Machine Tool Zhongjie rocker arm drilling machine equipment and technology and has been officially cooperating with Zhongjie for more than ten years after holding it in 2009-2011.
The Zhongjie rocker arm drilling machine is the first enterprise in China to produce, research, and develop a rocker arm drilling machine and has been producing rocker arm drilling machines since about 1960, representing the highest level of rocker arm drilling machines in China. Manufacturing factories in many countries worldwide have used our rocker arm drilling machines for more than 30 years and can continue to serve.
- Feature 1: Flexible and fast: because it is a non-numerical control machine, without programming, switching between different drills, taps quickly replace the size, can be very flexible and flexible processing. Especially suitable for large metal parts drilling, tapping operations, and the need to process threaded holes. Large size tapping can also be achieved very quickly.
- Feature 2: High drilling force or torque: very high drilling efficiency, also suitable for batch processing operations. Maximum torque 500Nm, maximum tapping size M20.
- Feature 3: Lower cost of use: tapping with a tap is not rigid tapping can be found in time, the drill can be repaired and ground daily, not easily damaged.
- Feature 4: Economy: The machine’s price is very economical compared to expensive machines like CNC machining centres. The equipment is very mature and not prone to failure.
- Feature 5 easy to operate, the operation is hydraulic control only a few buttons to solve the various parts of the locking, pre-selected variable speed function can be achieved through the variable speed handwheel to switch the speed, very labour-saving and simple easily. Only need simple training can be on duty, no need to learn CNC programming. It is just a good and durable tool.
Precision-Enhanced TEFU Z3050X16 Radial Drilling Machine
Building upon the proven legacy of Zhongjie-brand drill presses, our upgraded model introduces strategic micro-innovations that redefine durability:
- Revolutionary Guideway System
Modular Steel Guideway Assembly replaces traditional cast iron integration, featuring:
â–ª German-engineered alloy steel rails with hardness HRC57-60 (vs. competitors’ 40Cr steel HRC50)
â–ª “Denture-Style” Replaceable Design – Worn rails can be individually replaced like dental implants, extending service life by decades
- Unmatched Wear Resistance
The hardened guideways demonstrate 100% higher abrasion resistance than industry standards, achieving near-zero deformation even under 24/7 heavy machining – “virtually indestructible through decades of service”.
- Maintenance Advantage
There will be no more scrapping entire cross-arms! Our modular system slashes downtime costs by 80% through localized rail replacements.
- Technical features:
This patent-pending and ISO 9001-certified guideway innovation has become one of the visual hallmarks that differentiate TEFU/Zhongjie machine tools from conventional drilling machines.
Z3050X16 rocker arm drilling machine show
- TEFU Z3050X16 rocker arm drilling machine technical parameters table
| TEFU Z3050X16 Classic Rocker Arm Drilling Machine | Unit | Z3050X16 | |
| Maximum drilling diameter | mm | 50 | |
| Distance from spindle center to riser bus bar | Maximum | mm | 1600 |
| Minimum | mm | 350 | |
| Distance from spindle nose to base worktable surface | Maximum | mm | 1220 |
| Minimum | mm | 320 | |
| Spindle stroke | mm | 315 | |
| Spindle taper | No. | 5# | |
| Range of spindle speed | r/min | 25-2000 | |
| Number of spindle speeds | Series | 16 | |
| Range of spindle feeds | mm | 0.04-3.2 | |
| Number of spindle feeds | Series | 16 | |
| Worktable dimension (length*width*height) | mm | 630X500X500 | |
| Horizontal movement distance of spindle box | mm | 1250 | |
| Allowable maximum torque of spindle | Nm | 500 | |
| Main motor power | KW | 4 | |
| Rocker arm/sleeve lifting distance | mm | 580 | |
| Inclination angle of spindle box | – | – | |
| Movement distance of slide carriage | mm | – | |
| Machine tool weight | kg | 3500 | |
| Machine tool overall dimension (length*width*height) | mm | 2500X1070X2480 | |
| Cross arm guide hardness （Rockwell hardness） | HRC | 57-60 | |
| Tapping capacity(cast iron) | Maximum | M20 | |
| Tapping capacity(steel) | Maximum | M16 | |