All-Electric IBM Machine Guide:
ZQ60HE vs Hydraulic IBM

Injection Servo Motor

22 KW servo drives injection screw rotation and forward injection movement. Precise injection velocity and pressure profile control via servo torque — enables sub-1% shot weight variation across ZQ60HE cavities.

Clamping Servo Motor

15 KW + 15 KW dual servo drives injection and blow mould clamping. Electric clamping provides 20-30% faster mould open/close versus hydraulic clamping — the primary source of ZQ60HE cycle time advantage over hydraulic ZQ60.

Rotary Servo Motor

2.9 KW servo drives the 3-station rotary table. High-precision absolute encoder ensures repeatable station positioning to ±0.02 mm — critical for core rod alignment at each station change across high-cycle-rate ZQ60HE production.

Сервопривод подачи материала

18 KW servo drives the material auto-feeder. Volumetric control of HDPE, PP, LDPE and other IBM materials to the barrel hopper, maintaining consistent material feed rate for stable ZQ60HE barrel temperature and shot weight.

Energy Saving (Annual)

~KRW 12-18M

6-10 kWh/hr saving × 5,760 annual production hours (16h/day, 360 days) × KRW 120/kWh = KRW 4-7M/year energy cost saving per ZQ60HE vs hydraulic ZQ60

Extra Output (Annual)

~+21M containers

~20% faster cycle: extra 2,100 containers/hr × 5,760 hr = ~12M additional containers/year at 10 cavities, 30ml format

Maintenance Saving

Zero hydraulic oil cost

No hydraulic oil change (typically 80-120L per change, every 2,000 hours), no hydraulic seal replacement, no hydraulic filter replacement — eliminating KRW 3-6M/year hydraulic maintenance cost

В 01

Why is cycle time 20% faster on ZQ60HE than hydraulic ZQ60 at the same container format?

The ZQ60HE’s cycle time advantage over hydraulic ZQ60 derives from the fundamental response speed difference between servo electric actuators and hydraulic actuators. In a hydraulic IBM machine, the clamping force cylinder requires a hydraulic directional control valve to switch oil flow direction between open and close — the valve response time (typically 50-150 ms) plus the hydraulic oil fluid acceleration time (oil must accelerate from rest to cylinder movement speed) produces a total mould open/close motion time that is inherently slower than servo motor acceleration. A servo motor with a direct encoder feedback loop can accelerate from rest to maximum clamping speed and decelerate to stop in 30-60 ms — significantly faster than hydraulic valve + fluid acceleration time. In IBM cycle analysis, the mould open/close motion time occurs twice per cycle (injection mould close/open and blow mould close/open), and the rotary table motion also benefits from servo speed. Korea Ever-Power’s ZQ60HE demonstrates approximately 1.5-2.0 seconds total cycle time reduction versus hydraulic ZQ60 at 30 ml LDPE eye drop bottle (8.2 s ZQ60HE vs ~10 s hydraulic ZQ60) — corresponding to the ~20% cycle time improvement cited in ZQ60HE product specifications. The dry cycle specification of 2.5 s for ZQ60HE versus 4 s for hydraulic ZQ60 confirms the servo speed advantage in machine motion without material processing time.

В 02

Does the ZQ60HE require different operator training than hydraulic ZQ series machines?

ZQ60HE operator training covers the same IBM process fundamentals as hydraulic ZQ series training — container specification, material selection, barrel temperature setting, mould temperature control, cycle parameter optimisation and production troubleshooting. The ZQ60HE-specific training additions cover servo drive parameter interface: ZQ60HE process parameters include servo motor speed and acceleration curves for each machine axis (injection velocity profile, clamping speed ramp, rotary table acceleration) that are not present in hydraulic ZQ machine settings. Korea Ever-Power’s ZQ60HE commissioning engineer trains Korean customer operators on the servo axis parameter interface during ZQ60HE installation, demonstrating how to adjust servo speed profiles for different container formats and materials. The servo parameter interface is more precise (numerical settings versus hydraulic flow valve percentage settings) but also more intuitive once operators understand the relationship between servo axis speed settings and container quality outcomes. Korea Ever-Power provides Korean ZQ60HE customers with a ZQ60HE operator manual covering both standard IBM process parameters and ZQ60HE-specific servo axis settings for all container formats in the customer’s production programme.

В 03

What materials can ZQ60HE process and are there any materials the all-electric drive cannot handle?

ZQ60HE processes all standard IBM materials without limitation from the all-electric drive system: HDPE, LDPE, PP, PP RCP, ABS, PS, GPPS, HIPS, EVA, PHA, PLA and PCTG are all processable on ZQ60HE using the same material-specific barrel temperature and mould temperature parameters as hydraulic ZQ60. The servo drive system does not impose any material viscosity, processing temperature or injection pressure limitation that hydraulic ZQ60 does not also have — ZQ60HE injection pressure capability (servo torque-controlled) equals or exceeds hydraulic ZQ60 injection pressure capability for all standard IBM materials. Materials requiring special IBM processing attention (ABS requiring pre-drying, PHA/PLA requiring narrow temperature windows, EVA requiring PTFE core rod) have the same requirements on ZQ60HE as on hydraulic ZQ machines. The ZQ60HE’s adjustable clamping force (400-800 KN servo-controlled versus fixed hydraulic ZQ60 600 KN) adds the capability to set lower clamping force for flexible materials (EVA, LDPE at higher VA content) that benefit from reduced clamp-open force at the stripping station — a ZQ60HE process optimisation advantage over fixed-hydraulic-pressure machines for flexible IBM material applications.

В 04

What IBM container formats and applications is ZQ60HE specifically optimised for?

ZQ60HE is specifically optimised for small-to-medium IBM container formats (5-200 ml) at high production volumes where cycle time speed is the primary production economics driver. The ZQ60HE’s strengths align with three specific IBM production scenarios. High-speed pharmaceutical LDPE IBM: Korean MFDS ophthalmic eye drop containers (5-15 ml LDPE, 10-14 cavities) benefit most from ZQ60HE’s 20% cycle time advantage — at 14 cavities and 30ml equivalent cycle time, ZQ60HE produces approximately 115,000 eye drop containers per 24 hours versus 90,000 on hydraulic ZQ60, a 25,000-unit/day production advantage that accumulates to 7.5M additional containers per year in Korean pharmaceutical manufacturing. Korean cosmetic small-volume IBM: 10-50 ml PP RCP or ABS cosmetic containers for Korean K-beauty brands where Korean brand customer delivery schedules are tight and ZQ60HE’s additional output reduces order-to-delivery lead time from multi-week scheduling to single-week fulfilment at the same ZQ60HE cavity count. Food supplement PS clear jar IBM (100 ml, US export): ZQ60HE’s clean production environment — no hydraulic oil, lower noise, enclosed servo drives — meets US pharmaceutical supplement manufacturing environmental standards that some US brand customers specify for their Korean IBM container supplier facilities.

В 05

How does ZQ60HE position repeatability ±0.02 mm benefit IBM container quality versus hydraulic ZQ60?

ZQ60HE servo encoder position repeatability (±0.02 mm) versus hydraulic ZQ60 position sensor repeatability (±0.05-0.10 mm) translates to two specific IBM container quality advantages. Core rod station repeatability: the ZQ60HE rotary table positions the core rod at the injection, blow and stripping stations with ±0.02 mm repeatability per revolution versus hydraulic ZQ60 at ±0.05-0.10 mm. Better core rod station repeatability means more consistent core rod centre alignment at the injection cavity — producing more consistent preform wall eccentricity (off-centre preform wall thickness) across all production cycles. At Korean pharmaceutical IBM specification (wall eccentricity below ±0.05 mm for 10 ml LDPE eye drop), ZQ60HE’s superior rotary table repeatability provides a structural quality advantage versus hydraulic ZQ60 at the tightest wall eccentricity specifications. Injection velocity profile repeatability: ZQ60HE servo injection speed control at ±0.02 mm screw position versus hydraulic ZQ60 speed control at ±0.05-0.10 mm screw position produces more consistent injection fill rate at each cycle — resulting in more consistent preform shot weight variation (ZQ60HE <±0.8% versus hydraulic ZQ60 ±1-2% shot weight variation at equivalent process settings). Tighter shot weight variation directly produces tighter cavity-to-cavity weight variation and therefore tighter wall thickness variation across all ZQ60HE cavities.

В 06

What is the maintenance difference between ZQ60HE and hydraulic ZQ60 over a 5-year production period?

ZQ60HE’s maintenance profile over a 5-year IBM production period differs from hydraulic ZQ60 in three main categories. Hydraulic system maintenance eliminated: ZQ60HE has no hydraulic oil changes (typically required every 2,000 hours on hydraulic IBM — approximately 3 changes per year at 16-hour daily production), no hydraulic filter replacement (4-6 filters per year), no hydraulic seal replacement (hydraulic cylinder seals on injection and blow clamping cylinders typically require replacement at 2-3 year intervals on hydraulic IBM) and no hydraulic pump maintenance. Korea Ever-Power estimates Korean customers eliminate KRW 3-8M/year in hydraulic maintenance parts and service labour by operating ZQ60HE versus hydraulic ZQ60 at equivalent production hours. Servo drive maintenance additions: ZQ60HE servo drives (Mitsubishi or Siemens industrial servo systems) require periodic servo drive capacitor replacement at approximately 5-year intervals (standard preventive maintenance for industrial servo drives in continuous production service). Servo motor bearings require inspection at 3-5 year intervals depending on production hours. These servo-specific maintenance items are covered in Korea Ever-Power’s ZQ60HE 5-year maintenance schedule provided to Korean customers at machine commissioning. Shared maintenance items: ZQ60HE and hydraulic ZQ60 share maintenance requirements for injection barrel wear liner (replace at 15,000-20,000 kg material throughput), screw flight wear (inspect at 12-month intervals), rotary table bearing (inspect at 2-year intervals), and mould re-polish service schedule. Korea Ever-Power provides Korean ZQ60HE customers with a complete 5-year maintenance schedule for all maintenance categories at machine delivery, supporting Korean customer’s preventive maintenance planning and Korean accounting annual maintenance cost budgeting.