iER8-720-MI-PI-C Six-axis robotic arm (manipulator)
Light-Load Six-Axis Robot · Load 8kg · Reach: 720mm
iER8-720-MI-PI-C Specifications
iER8-720-MI-PI-C light-load six-axis robot, 8kg load, 720mm reach, 6-axis robot.
Model introduction
iER8-720-MI-PI-C Lightweight Six-Axis Robot · Load 8kg · Reach 720mm · 6-axis · Protection rating: IP65/ISO Class 5. Estun's full-stack self-developed core components ensure stable and reliable performance.
iER MINI Series Lightweight Six-Axis Robots · Series technical features
4-20kg · Ultra-compact · Flexible deployment
Lightweight design, the lightest body is only 46kg, saving installation space and suitable for desktop deployment.
Offers multiple configurations for 3, 4, and 6 axes, allowing you to choose the best cost-performance solution as needed.
IP67 protection model is suitable for harsh working conditions, and clean model reaches ISO Class 5.
Deeply optimized processes for 3C electronic assembly, inspection, and locking.
Typical application scenarios
Common application processes for this model (click to view process details):
iER MINI Series Lightweight Six-Axis Robots · Other models in the same series
Compare load and reach to choose the model that best suits your process.
iER8-720-MI-PI-C model positioning and working condition compatibility
iER8-720-MI-PI-C This is an industrial robot model belonging to the Estun iER MINI series of light-duty six-axis robots, with a rated load of 8kg and a motion radius of 720mm. Estun's technical foundation is that of the top domestic brand, with self-developed core motion control technology, and after acquiring Germany's Cloos, its welding process capabilities have leapt forward; The control platform is the Estun Controller (self-developed movement control platform), and the program ecosystem consists of graphical programming + instruction scripting.
From the perspective of working condition adaptation, typical applications for light loads (8kg) positioning are:Machine tool loading and unloading, 3C assembly, inspection, and handling of small and medium-sized partsCommon application processes for this model include precision assembly, inspection, screw tightening, dispensing, and lightweight handling. The short-span (720mm) model has a compact structure, suitable for dense workstations and close-range pick-and-place operations, with a small working unit footprint. The end fixture is counted as a load from the most important point—the total of gripper + workpiece + sensor should not exceed 80% of the rated value. Workpieces with high inertia (long rod/uneven load) should be checked separately.
| Parameters | Engineering interpretation and usage recommendations |
|---|---|
| Rated load 8kg | It is recommended to reserve a load margin of 20%–30%; Verification is made by combining end self-weight + workpiece + imbalanced load inertia, especially sensitive to high-speed conditions |
| Radius of motion: 720mm | Determine the radius of the workcell layout: bins, tooling, and fences are bounded by maximum arm span + safety distance; Verify the accessibility of each pick-and-place point during cross-station service |
| Number of axes: 6 | Six-axis all-posture capability, the preferred choice for complex trajectory and inclined surface operations |
| Protection rating IP65 | Prevents water and dust jets, sufficient for conventional industrial environments |
| Controller: Estun Controller (self-developed platform for motion control) | Decide on the process ecosystem, spare parts channels, and second-hand residual value; Currently, spare parts channels are smooth, and repair and upgrade paths are mature |
Control systems and common failure modes
The iER8-720-MI-PI-C is equipped with the Estun controller (self-developed Motion Control Platform) controller, with a programming language and development environment of graphical programming + instruction scripts. Maintenance of this generation of control platforms focuses on three basic components: power, storage, and cooling—most "sudden downtime" can be detected in advance when preventive maintenance is in place.
| Failure mode | Typical performance | Disposal recommendations |
|---|---|---|
| Driver overcurrent/overload alarm | Driver overcurrent/overload alarm | Included as a mandatory inspection item for annual maintenance, with spare parts stocked in advance |
| Encoder feedback anomalies and cable interference | Encoder feedback anomalies and cable interference | Initial interpretation of alarm codes by reference with manuals, remote diagnosis allows for early positioning |
| The teach pendant system is lagging or crashing | Teach Pendant System Freezes or Crashes (Regular Restarts and Image Recovery) | Daily inspection coverage, with abnormal trends (abnormal noises/temperature rise/errors) recorded |
| IO module communication failure | IO module communication failure | Quarterly dust removal maintenance and cabinet temperature monitoring |
| Maintenance projects | Cycle recommendations | Key points |
|---|---|---|
| Regular backup of parameters and programs (dual USB drive + cloud storage) | Periodically | Regular backup of parameters and programs (dual USB drive + cloud storage) |
| Batteries should be replaced periodically | By cycle | Batteries should be replaced periodically |
| Reducer lubrication is managed by operating hours | By operating hours | Reducer lubrication is managed by operating hours |
| Cable and drag chain inspection | every six months | Insulation, shielding, and bending radius inspection of power and encoder lines, as well as wear of cables inside the drag chain, are the main causes of intermittent faults |
| Zero point and accuracy retest | Every year | Repeatability measured by dial gauges or laser trackers, drift trend digitization—accuracy degradation can be seen six months in advance |
| Control cabinet dust removal and fans | Every quarter | Filter cleaning, fan speed and noise checks, cabinet temperature recording; Dust environments shorten the cycle |
Henghuan's service capabilities for iER8-720-MI-PI-C
This site is a third-party robotics technology service provider. The eight major business supports related to iER8-720-MI-PI-C are as follows (sorted by service frequency for each model):
- Maintenance and repair: For on-site diagnostics, board-level repairs, and annual maintenance contracts for iER8-720-MI-PI-C—regular parameter and program backups (USB drive + cloud dual copies), and other brand-exclusive items, we follow SOPs and respond to Sichuan-Chongqing on the same day.
- Used & in-stock robot sales: Low second-hand prices and increasing circulation, suitable for budget-sensitive handling and palletizing tasks; Perform comprehensive inspections before procurement; The iER8-720-MI-PI-C or equivalent models come with a full-function test report and a 12-month warranty.
- Sales of new industrial robots: When adding new production lines or replacing batches, we conduct cross-brand selection comparisons based on process requirements (including models of the same class as Estun), and provide configuration and pricing plans.
- Applied technology services:Process programming, trajectory optimization, tap time potential, and pattern change formula management for iER8-720-MI-PI-C, with targeted commissioning for precision assembly, inspection, screw tightening, dispensing, and lightweight handling conditions.
- Research and development of automation equipment: Custom fixture ends, peripheral tooling, and safety fences for iER8-720-MI-PI-C, with interfaces designed according to Estun flange and IO standards.
- Robot rental: For short-term capacity or process validation periods, iER8-720-MI-PI-C equivalent in-stock models can be rented, including transportation, installation, and commissioning, with flexible rental periods and flexible options for transfer.
Common issues with this device
Is it easy to find spare parts for iER8-720-MI-PI-C?
Estun: Spare parts channels for this generation are smooth; we have in-stock or short-cycle channels for standard parts such as drivers, power modules, batteries, and teach pendant components; Parameters and programs are regularly backed up (USB drive + cloud dual copies). It is recommended to configure consumables according to the annual maintenance contract.
With a nominal load of 8kg, how much weight can it actually handle?
The rated load is the static load limit of the flange surface. In actual selection, three factors must be considered: the self-weight of the end fixture (vacuum suction cup groups or grippers often account for 2–5kg), the inertia generated by the workpiece offload (checked according to the inertia ratio when the center of gravity deviates from the flange center), and the dynamic load during high-speed movement. The conventional engineering practice is to keep the "end + workpiece" within 70%–80% of the rated value to ensure cycle time and service life.
If the equipment's accuracy deteriorates after several years of use, how can it be restored?
According to the inspection order: first check whether the zero point is drifting (common after collision or battery depletion), then perform zero calibration; Check the reducer's return error (actual measurement of forward and reverse positioning deviation; if exceeded, disassemble or replace); Then check the installation base fastening and foundation settlement; Finally, trajectory compensation parameter restructuring. Most accuracy issues can be mostly restored after calibration and maintenance, so there is no need to rush into major repairs—we first release the inspection data before deciding on the plan.
Is the used iER8-720-MI-PI-C worth buying?
Second-hand prices are low and circulation is increasing, suitable for budget-sensitive handling and palletizing tasks; Perform comprehensive inspections before purchasing. Three essential items for second-hand procurement: comprehensive inspection reports (axial accuracy, driver status, insulation and battery), maintenance history and operating hours, controller generation, and software license integrity. Every used machine we sell comes with inspection records and a 12-month warranty, and we can also accept third-party inspections designated by customers.
Need technical support or procurement for this model?
Whether it's model selection comparison, installation and commissioning, or maintenance of in-use equipment, you can contact Henghuan. Tell us about your processes, loads, and equipment status, and we will provide third-party technical support and solution recommendations.
Contact Henghuan Back to the full series