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Pratishna Engineers Ltd

Name: Pratishna Engineers Ltd
Address: A-1-4, Vaibhav Industrial Premises, Opposite Oxford Chambers, Saki Vihar Road, Powai, Mumbai, 400072, IN
Telephone: +919969038542

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Leading manufacturer of high-performance plastic injection moulding machines (40–450 tons). India | Africa | Asia | Middle East

Trusted by industries across automotive, medical, consumer goods & packaging . Pratishna Engineers Ltd, established in 1991, is a leading manufacturer of Injection Moulding Machines. We design and manufacture energy-efficient, reliable and cost-effective machines for plastic processing industries across India and global markets. Our solutions are trusted for consistent output, long machine life and prompt after-sales support. We work with modern manufacturing technologies to help customers reduce production costs while maintaining high quality standards.

31/10/2026

**Planning to buy an injection moulding machine? Don't ask for the price without preparing these details first.**

Two machines with the same tonnage may not be equally suitable for your product.

To get a more relevant machine recommendation and quotation, keep these eight details ready:

1. **Component drawing or sample** – Shows what you want to manufacture.
2. **Polymer or material** – Helps identify processing requirements.
3. **Part or shot weight** – Helps determine injection capacity.
4. **Mould dimensions** – Helps check physical machine compatibility.
5. **Cavity count** – Affects total shot requirements and clamping force.
6. **Target production volume** – Helps match the machine to your output needs.
7. **Cycle time and quality targets** – Clarifies production expectations.
8. **Floor space and power supply** – Helps assess installation requirements.

With these details, a manufacturer can better understand your application and recommend a suitable machine configuration.

**A useful quotation isn't just about the price. It's about whether the machine is right for your product.**

Save this checklist before requesting your next injection moulding machine quotation.

27/10/2026

**What if your mould is too large for a standard horizontal injection moulding machine?**

This is where a two-platen injection moulding machine may be worth considering.

Two situations can make a difference:

**1. Larger or longer moulds**

When your mould requires more space than the available horizontal machine configuration can accommodate.

**2. Higher clamping requirements**

When the required clamping force goes beyond the standard horizontal machine range.

Two-platen machines can be considered for applications where larger mould dimensions, platen requirements and floor space are important.

But remember: a two-platen machine isn't automatically the right choice for every large component.

The final selection should be based on your mould dimensions, clamping force and production needs.

**Choosing the right machine design starts with understanding your mould.**

23/10/2026

**Horizontal or vertical injection moulding machine, which one should you choose?**

Both use the injection moulding process, but their layouts suit different manufacturing requirements.

**Horizontal injection moulding machines** are commonly considered for general-purpose plastic components and production setups that benefit from horizontal moulding and downstream handling.

**Vertical injection moulding machines** are often considered for applications involving inserts and components that need positioning within the mould.

But machine orientation is only one part of the decision.

You should also consider:

- Component design
- Material requirements
- Mould dimensions
- Production volume
- Quality targets

The better machine is the one that fits your application, not necessarily the one with the highest capacity.

**Start with what you're manufacturing. Then choose the machine configuration.**

19/10/2026

**Why can two plastic components require different injection moulding machine configurations?**

Because every component has its own material, weight, design and moulding requirements.

When selecting an injection moulding machine, pay attention to these factors:

🔹 **Material:** Different polymers have different processing requirements.

🔹 **Component design:** The part's dimensions and geometry affect the amount of material required.

🔹 **Mould design:** Cavity count and runner requirements affect the total shot.

🔹 **Screw diameter:** Different screw options provide different shot capacities and injection pressures.

🔹 **Machine tonnage:** The clamping force must suit the moulding application.

Looking at only one specification can lead to the wrong machine selection.

**A better approach is to evaluate the complete component, mould and production requirements together.**

Which specification do you check first when evaluating an injection moulding machine?

12/10/2026

**Your injection moulding machine has the right tonnage. But will your mould actually fit?**

This is an important question that buyers shouldn't overlook.

Even when the clamping force is suitable, the physical dimensions of the mould must match the machine.

Check these three things:

🔹 **Tie-bar clearance:** Is there enough space to accommodate the mould?

🔹 **Mould thickness:** Does the mould fall within the machine's supported thickness range?

🔹 **Daylight opening:** Does the machine provide the opening required for the mould?

Ignoring these details can create installation and machine-selection problems.

So, before finalising an injection moulding machine, share the complete mould dimensions with the manufacturer.

**The right tonnage matters. But proper mould compatibility matters just as much.**

11/10/2026

**Can changing the screw diameter change your injection moulding results? Yes.**

Even when the machine tonnage stays the same, the screw diameter can affect shot capacity and injection pressure.

Take the Pratishna E 75 Ton machine as an example.

**27 mm screw:**
- Shot weight: 82 g (PS)
- Injection pressure: 2,500 kg/cm²

**32 mm screw:**
- Shot weight: 116 g (PS)
- Injection pressure: 1,780 kg/cm²

Notice the difference?

The larger screw offers a higher shot capacity, while the smaller screw operates at a higher injection pressure in this example.

That's why screw selection should depend on the component, material and process requirements—not just machine tonnage.

**Before choosing an injection moulding machine, ask about the available screw and barrel configurations.**

10/10/2026

**How do you know how much tonnage your injection moulding machine needs?**

Many buyers start by comparing 100-ton, 150-ton or 180-ton machines.

But the right question is: How much clamping force does your product actually require?

Here are five important checks:

1. **Projected area:** Understand the area of the component that affects clamping force.
2. **Cavity count:** Include all mould cavities and runners.
3. **Cavity pressure:** Consider the pressure required during moulding.
4. **Safety margin:** Allow an appropriate margin when selecting tonnage.
5. **Mould fit:** Check tie-bar clearance, mould thickness and daylight opening.

These details help you avoid choosing a machine that is too large or too small for your application.

**Remember: Tonnage selection should start with the component and mould, not just the machine catalogue.**

Save this checklist for your next injection moulding machine purchase.

08/10/2026

**A bigger injection moulding machine isn't always a better machine.**

When buying an injection moulding machine, choosing the wrong tonnage can increase your production costs.

Here's what you should know:

🔹 **Oversized machine:** You may spend more on the machine and its energy consumption than your production actually requires.

🔹 **Undersized machine:** Insufficient clamping force can lead to moulding defects such as flash.

The goal isn't to buy the biggest machine. It's to select the right clamping force for your product, mould and production requirements.

Before finalising a machine, check your component's projected area, cavity count, mould dimensions and required clamping force.

**The right machine size can make a real difference to your cost per part.**

Have you ever faced production problems because of incorrect machine sizing?

28/09/2026

A 32 mm screw is larger than a 27 mm screw, but that does not make it the right choice for every component.

Here is the practical difference:

The 27 mm screw provides an 82 g shot weight in PS with an injection pressure of 2,500 kg/cm². It is better suited to thin walls and longer flow paths.

The 32 mm screw increases shot weight to 116 g, while injection pressure is 1,780 kg/cm². It is better suited to heavier shots where pressure is not the main constraint.

The selection therefore comes down to one trade-off:

Does the component require greater shot capacity or higher injection pressure?

Understanding that requirement is more useful than choosing by screw diameter alone.

Address

A-1-4, Vaibhav Industrial Premises, Opposite Oxford Chambers, Saki Vihar Road, Powai
Mumbai
400072

Opening Hours

Monday	9am - 7pm
Tuesday	9am - 7pm
Wednesday	9am - 7pm
Thursday	9am - 7pm
Friday	9am - 7pm
Saturday	9am - 7pm

Telephone

+919969038542

Website

https://www.pratishnaengineers.com/, https://pratishnamachines.com/

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